MYCOM Compressor Parts List

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Let us determine the extent of your problem, give you a full report, and best plan of action to get your compressor up and running as soon as possible. SCS does offer 24/7 around the clock repairs to eliminate your downtime. In some case you could be eligible for SCS exchange program offering a very quick turnaround. Screw Compressors Service offers free screw compressor inspections for the following brands:

Trusted Compressor Overhaul and Rebuild Company. Screw Compressor Repair has been in the Industrial Industry for more than 30 years.

IN SHOP OVERHAUL

SCS shop is equipped with all necessary tools and equipments - crane, forklift, special tool, etc. SCS tear down table has a building oil rail drain to catch all oil drain from compressor during disassembly so there is no oil on the floor that may cause slip and fall. PPE is always available for everyone. Safety training are done year round – safety certifications is required to work in the job site.

Hotshot Pickup & Delivery Services

24/7 Nationwide Hotshot Delivery Service to and from the location of the compressor needing repair.

About Mayekawa "MYCOM":

Mayekawa has been deeply committed to the refrigeration industry for more than 80 years. During this time Mayekawa has developed high quality, easy to handle and cost-effective thermal technology. Mayekawa offers a comprehensive range of compressors with hundreds of models developed in response to the variety of applications required in refrigeration. New gas compressors have been developed for the specific needs of gas compression systems based on our experience in applications including helium, hydrogen, water vapor, chlorine, hydrogen chloride, and hydrogen sulfide( not including oxygen and acetylene). Mayekawa never cease building on MYCOM experience with research and development to constantly improve their compressor products.

Mycom Gas Compressors:

Mayekawa's gas compressors can handle a wide range of petrochemical industry gases including hydrogen, helium, carbon dioxide; raw material gases including vinyl chloride, methyl chloride; active gases including chlorine, hydrogen chloride, hydrogen sulfide; gas mixtures and VOC and associated gases from refinery processes. MYCOM gas compressors' performance and reliability have been proven over and over in petrochemical, oil and gas projects around the world. Our gas compressors are applied to various fuel gases for power generation and recovering oil, hydrocarbons and raw material gases contributing to energy-saving and environmental sustainability.

Mycom Chiller Systems:

Highly efficient and reliable chiller packages with built-in MYCOM compressor. Mayekawa has led the trend in natural refrigerants in the pursuit of environmental sustainability. With this experience we now offer a number of models which take advantage of natural refrigerants.

NewTon is a new high efficiency energy saving NH3/CO2 cooling system purpose designed for cold storage refrigeration.
We have reduced absorbed power by 20% in comparison to conventional HFC refrigerators,
Safety is improved by using CO2 as the secondary refrigerant and reducing the amount of NH3 refrigerant to 1/6 the amount a conventional ammonia system would use.

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Mycom Series 1612LSC Compressor Parts List
Mycom Series 2016C Compressor Parts List
Mycom Series 2520C Compressor Parts List
Mycom Series 3225C Compressor Parts List
Mycom Series 4032C Compressor Parts List
Mycom I Series Compressor Parts List
Mycom J Series Compressor Parts List
Mycom SCV Series Compressor Parts List

Mycom C Series Compressor 1612 LSC

P/N Part name Part code No. Remarks Quantity
52/62 53/63 54
1-1 Main Rotor Casing (1) CS00100-160L 160L** 1 1 -
1-2 Main Rotor Casing (2) CS00100-1612C 1612*SC 1 1 1
2-1 Hexagon Socket Head Cap Screw NB35412-040 M12×40 52 52 52
2-2 Hexagon Socket Head Cap Screw NB35414-040 M14×40 36 36 36
3-1 Alignment Pin NE2013-040 Φ13×40 4 4 4
3-2 Alignment Pin NE2016-040 Φ16×40 4 4 4
4-1 Hanger Bolt NB600-16 M16 1 1 1
4-2 Hanger Bolt NB600-12 M12 1 1 1
5-1 Suction Cover (1) CS00500-1612C1 1612**C 1 1 1
5-2 Suction Cover (2) CS00500-1612C2 1612**C 1 1 1
6-1 Gasket, Suction Cover (1) CS00600-160N 160*** 1 1 1
6-2 Gasket, Suction Cover (2) CS00600-1612CN 1612**C 1 1 1
8 Spring Pin NE3204-010 Φ4×10 4 4 4
10-1A Plug NF06-010 R3/8 1 1 1
10-2A Plug NF06-008 R1/4 1 1 1
10-2B Plug NF06-010 R3/8 1 1 1
11-1 Bearing Head (3) CS01100-1612C3 1612**C 1 1 1
11-2 Bearing Head (2) CS01100-1612C2 1612**C 1 1 1
12-1 Gasket, Bearing Head (1) CS01200-160N 160*** 1 1 1
12-2 Gasket, Bearing Head (2) CS01200-1612CN 1612**C 1 1 1
13 Hanger Bolt NB600-12 M12 1 1 1
14 Spring Pin NE3204-010 Φ4×10 4 4 4
15-1A Plug NF06-004 R1/8 1 1 1
15-1B Plug NF06-004 R1/8 1 1 1
15-1C Plug NF06-015 R1/2 1 1 1
15-1D Plug NF06-020 R3/4 1 1 1
17-2 Gasket, Bearing Cover (2) CS01700-1612CN 1612**C 1 1 1
18-1 Hexagon Socket Head Cap Screw NB35414-040 M14×40 24 24 24
18-2 Hexagon Socket Head Cap Screw NB35412-040 M12×40 26 26 26
19-1 Alignment Pin NE2013-040 Φ13×40 2 2 2
19-2 Alignment Pin NE2013-040 Φ13×40 2 2 2
20 Spring Pin NE3203-010 Φ3×10 1 1 1
21 Plug NF06-004 R1/8 1 1 1
22 Balance Piston Cover CS02200-1612C 1612**C 1 1 1
23 Gasket, Balance Piston Cover CS02300-1612CN 1612**C 1 1 1
24 Hexagon Socket Head Cap Screw NB35410-035 M10×35 12 12 12
25-1 Male Rotor (1)
CS02500-1612C1N 1612LSC
speed increaser type 1 1 1
26-1 Female Rotor (1)
25-2 Male Rotor (2)
CS02500-1612C2N 1612LSC 1 1 1
26-2 Feale Rotor (2)
27-1A Main Bearing /Side Bearing (1) A CS02700-1612C3 1612LSC
speed increaser type 1 1 1
27-1B Main Bearing /Side Bearing (1) B CS02800-1610C1 1610SLC/1612**C 1 1 1
27-2 Main Bearing (2) CS02700-125 125*** 2 2 2
28-1 Main Bearing /Side Bearing (1) CS02800-1610C1 1610SLC/1612**C 2 2 2
28-2 Side Bearing (2) CS02800-125 125*** 2 2 2
29-1A Snap Ring (1) C type Internal NG11-112 H112 1 1 1
29-1B Snap Ring (1) C type Internal NG11-102 H102 3 3 3
29-2 Snap Ring (2) C type Internal NG11-080 H80 4 4 4
30 Balance Piston CS03000-1612C 1612**C 1 1 1
2202L5JE-DA-C5-N_2015.05.
7 Related Documents
Compound 2-stage Screw Compressor 7.2 Parts Configuration Table
1612LSC Speed Increaser Type
7-6
P/N Part name Part code No. Remarks Quantity
52/62 53/63 54
31 Key, Balance Piston CS03100-125 125*** 1 1 1
32 Snap Ring C type External NG12-040 S40 1 1 1
33 Sleeve, Balance Piston CS03300-160 160*** 1 1 1
34 Hexagon Socket Head Cap Screw NB35406-015 M6×15 1 1 1
35 O-ring PA12-095 JIS B 2401 G95 1 1 1
37 Snap Ring C type Internal NG11-102 H102 1 1 1
38-1 Thrust Bearing (1) A CS03800-1612CP 7214B 1set 1set 1set
38-1 Thrust Bearing (1) B CS03800-160P 7212B 1set 1set 1set
38-2 Thrust Bearing (2) CS03800-125P 7209B 2set 2set 2set
39-1 Lock Nut (1) A NG31-014 AN14 1 1 1
39-1 Lock Nut (1) B NG31-012 AN12 2 2 2
39-2 Lock Nut (2) NG31-009 AN09 2 2 2
40-1A Lock Washer (1) A NG32-014 AW14 1 1 1
40-1B Lock Washer (1) B NG32-012 AW12 2 2 2
40-2 Lock Washer (2) NG32-009 AW09 2 2 2
41-1 Spacer, Thrust Bearing Outer Race (1) CS04100-160 160*** 1 1 1
41-2 Spacer, Thrust Bearing Outer Race (2) CS04100-125 125*** 2 2 2
42-1A Spacer, Thrust Bearing Alignment (1) CS04200-1612C 1612LSC
speed increaser type 1 1 1
42-1B Spacer, Thrust Bearing Alignment (1) CS04200-B160 160*** Booster 1 1 1
42-2 Spacer, Thrust Bearing Alignment (2) CS04200-125 125*** 2 2 2
43-1A Thrust Bearing Gland (1) A CS04300-1612C3M 16LSC
speed increaser type
1 1 1
43-1B Thrust Bearing Gland (1) B CS04300-1612C3F 1 1 1
43-2A Thrust Bearing Gland (2) A CS04300-1612C2F 1612**C 1 1 1
43-2B Thrust Bearing Gland (2) B CS04300-1612C2M 1612**C 1 1 1
45-1A Hexagon Head Bolt NB15512-035 M12×35 4 4 4
45-1B Hexagon Head Bolt NB15510-030 M10×30 4 4 4
45-2 Hexagon Head Bolt NB111008-030 M8×30 8 8 8
46-1A Spring Washer ND320-012 M12 4 4 4
46-1B Spring Washer ND320-010 M10 4 4 4
46-2 Spring Washer ND320-008 M8 8 8 8
48 Retainer, Oil Seal CS04800-160 160*** 1 1 1
49 O-ring PA12-090 JIS B 2401 G90 1 1 1
50 Oil Seal CS05000-160VD SA1J55 × 70 × 9 1 1 1
51 Seal Cover CS05100-160 160*** 1 1 1
52 Gasket, Seal Cover CS05200-160N 160*** 1 1 1
53 Hexagon Socket Head Cap Screw NB35408-025 M8×25 8 8 8
54 Unloader Slide Valve (L Port) CS05400-1612C 1612LSC 1 1 1
54 Unloader Slide Valve (M Port) - 1612LSC 1 1 1
58 Hexagon Socket Head Cap Screw NB35408-030 M8×30 4 4 4
59 O-ring PA11-016 JIS B 2401 P16 1 1 1
60 Unloader Cylinder CS06000-1612C 1612**C 1 1 1
61 Hexagon Socket Head Cap Screw NB35408-095 M8×95 8 8 8
63 O-ring PA12-095 JIS B 2401 G95 1 1 1
64 Unloader Piston CS06400-1612C 1612**C 1 1 1
65 O-ring PA11-075 JIS B 2401 P75 1 1 1
66 Cap Seal CS06600-125 CAP-1BE75 1 1 1
67 Push Rod (3), Unloader Slide Valve CS06700-1612C3 16LSC
speed increaser type 1 1 1
68 Guide Pin NE2503-008 Φ3×8 1 1 1
69 Lock Nut NG31-005 AN05 1 1 1
70 Lock Washer NG32-005 AW05 1 1 1
71 Lock Nut NG31-006 AN06 1 1 1
72 Lock Washer NG32-006 AW06 1 1 1
73 O-ring PA11-021 JIS B 2401 P21 1 1 1
74 Unloader Cover CS07400-125S 125*** 1 1 1
2202L5JE-DA-C5-N_2015.05.
7 Related Documents
Compound 2-stage Screw Compressor 7.2 Parts Configuration Table
1612LSC Speed Increaser Type
7-7
P/N Part name Part code No. Remarks Quantity
52/62 53/63 54
75 O-ring PA12-085 JIS B 2401 G85 1 1 1
76 Hexagon Socket Head Cap Screw NB35406-035 M6×35 8 8 8
77 Indicator Cam CS07700-1610C 1610SLC 1 1 1
78 Ball Bearing CS07800-200 #6000 1 1 1
79 Snap Ring C type External NG12-010 S10 1 1 1
80 Bearing Gland CS08000-200 200*** 1 1 1
81 Hexagon Socket Head Cap Screw NB35406-015 M6×15 3 3 3
82 V-ring CS08200-200B 20×10×12 1set 1set 1set
83 Spring CS08300-200 200*** 1 1 1
84 Retainer, Indicator Cam Spring CS08400-200 200*** 1 1 1
85 Oil Injection Pipe CS08500-160SUK 125L**/160S** 1 1 1
86 O-ring PA11-016 JIS B 2401 P16 1 1 1
87 Guide Block CS08700-160 160*** 1 1 1
88 Stem, Guide Block " 160*** 1 1 1
89 O-ring PA11-016 JIS B 2401 P16 2 2 2
91 Shaft Key (Coupling Key) CS09100-160 160*** 1 1 1
92-1 Suction Flange (1) CS71400-125 MYK 125A (5") 1 1 1
92-2 Suction Flange (2) CS71400-080 MYK 80A (3") 1 1 1
93-1 Gasket, Suction Flange (1) CR72000-125N MYK125A (5") 1 1 1
93-2 Gasket, Suction Flange (2) CR72000-080N MYK 80A (3") 1 1 1
94-1 Hexagon Head Bolt NB12020-055 M20×55 8 8 8
94-2 Hexagon Head Bolt NB12020-055 M20×55 4 4 4
95-1 Discharge Flange (1) CS71400-080 MYK 80A (3") 1 1 1
95-2 Discharge Flange (2) CS71400-065 MYK 65A (2"1/2) 1 1 1
96-1 Gasket, Discharge Flange (1) CR72000-080N MYK 80A (3") 1 1 1
96-2 Gasket, Discharge Flange (2) CR72000-065N MYK 65A (2"1/2) 1 1 1
97-1 Hexagon Head Bolt NB12020-055 M20×55 4 4 4
97-2 Hexagon Head Bolt NB12010-055 M16×55 4 4 4
100 Mechanical Seal Assembly CS10000-160BT BOS-T1 160V** 1set 1set 1set
100 Mechanical Seal Assembly CS10002-160EBS BBS-E 160 1set 1set 1set
120 Unloader Indicator Assembly CS12000-1612F 1612LSC 1set 1set 1set
151 Driven Sleeve 1610**C 1 1 1
152 Drive Hub 1610**C 1 1 1
153 Driven Hub 1612**C 1 1 1
154 Stopper, Drive Sleeve 1610**C 2 2 2
155 Stop Ring RR-293(#10 用) 4 4 4
157 Key, Driven Hub 1 1 1
158 Key, Drive Hub 1 1 1
159 Set Screw NA83606-015 M6×15 1 1 1
160 Lock Nut NG31-008 AN08 1 1 1
161 Lock Washer NG32-008 AW08 1 1 1
162 Hexagon Socket Head Cap Screw NB35406-035 M6×35 5 5 5
163 O-ring PA12-025 JIS B 2401 G25 1 1 1
164 Retainer, Oil Injection Pipe CS16400-1612C 1 1 1
165 O-ring PA11-021 JIS B 2401 P21 1 1 1
166 Hexagon Socket Head Cap Screw NB35406-025 M6×25 4 4 4
168 Pipe Guide, Oil Injection CS16800-1612C 1612LSC 1 1 1
169 Speed Increaser Gear Casing CS16900-1610C 1610SLC 1 1 1
170 Gasket, Speed Increaser Gear Casing CS17000-1612CN 1612LSC 1 1 1
171 Speed Increaser Gear Casing Cover CS17100-1610C 1610SLC 1 1 1
172 Gasket, Speed Increaser Gear Casing
Cover CS17200-1610CN 1610SLC 1 1 1
174-1 Speed Increaser Drive Gear (4P) CS17400-1610C52 52-2610rpm
62-3150rpm 1 - --
2202L5JE-DA-C5-N_2015.05.
7 Related Documents
Compound 2-stage Screw Compressor 7.2 Parts Configuration Table
1612LSC Speed Increaser Type
7-8
P/N Part name Part code No. Remarks Quantity
52/62 53/63 54
174-2 Speed Increaser Drive Gear (2P) CS17400-1612153 53-3610rpm
63-4350rpm - 1 -
174-3 Speed Increaser Drive Gear (2P) CS17400-1612154 54-4350rpm - - 1
175 Key, Speed Increaser Gear Shaft CS18000-1610CD 1610C 1 1 1
176 Gland, Speed Increaser Gear CS18100-1610CD 1610C, 4P 2 - -
179-1 Speed Increaser Driven Gear (4P) CS17900-1610C52 52-2610rpm
62-3150rpm 1 - -
179-2 Speed Increaser Driven Gear (2P) CS17900-1612153 53-3610rpm
63-4350rpm - 1 -
179-3 Speed Increaser Driven Gear (2P) CS17900-1612154 54-4350rpm - - 1
180 Key, Speed Increaser Driven Gear CS18000-1610CI 1610C 1 1 1
181 Gland, Speed Increaser Driven Gear CS18100-1610CIB 1610C, 4P 2 - -
183 Side Bearing Speed Increaser Driven
Gear CS02700-125 125*** Main bearing 1 1 1
184 Spring Pin NE3204-010 Φ4×10 1 1 1
185 Roller Bearing, Speed Increaser Driven
Gear Spindle CS18500-1612C NU2212 1 1 1
186 Snap Ring C type Internal NG11-110 H110 1 1 1
187 Snap Ring C type External NG12-060 S60 1 1 1
188 Speed Increaser Gear Spindle CS18800-1612C 1 1 1
189 Thrust Bearing CS03800-200 200*** 1set 1set 1set
190 Gland, Thrust Bearing CS19000-1610C 1 1 1
191 Hexagon Head Bolt NB111012-035 M12×35 4 4 4
192 Conical Spring Washer CS04600-200 M12 4 4 4
193 Lock Nut NG31-013 AN13 1 1 1
194 Lock Washer NG32-013 AW13 1 1 1
195 Hexagon Socket Head Cap Screw NB35412-040 M12×40 21 21 21
196-1 Oil Flow Control Throttle CS19600-M408 M4×8×Φ1.5 1 1 1
196-2 Oil Flow Control Throttle R1/8×Φ1.5 2 2 2
197 O-ring PA11-032 JIS B 2401 P32 1 1 1
237-1A Torsional Slip Washer (1) A CS23700-1612CB 1612**C 1 1 1
237-1B Torsional Slip Washer (1) B CS23700-160 160*** 2 2 2
237-1
C Torsional Slip Washer (1) C CS23700-200 200*** 1 1 1
237-1
D Torsional Slip Washer (1) D CS23700-250 250*** 1 1 1
237-2 Torsional Slip Washer (2) CS23700-125 125*** 2 2 2
250-1 Thrust Washer CS25000-1612C3 1612LSC
speed increaser type 1 1 1
267 Special Spring Washer ND330-08 M8 4 4 4
326 Gland, O-ring CS32600-1612C 1612LSC
speed increaser type 1 1 1
335 Special Spring Washer ND330-06 M6 1 1 1
456 Hexagon Socket Head Cap Screw NB35405-010 M5×10 4 4 4
605-1 Plug NF06-015 R1/2 1 1 1
605-2 Plug NF06-008 R1/4 1 1 1
607 Plug NF06-004 R1/8 1 1 1
 The part code of the O-ring is the one assigned to NBR which is standard
material. When the material of the O-ring is other than NBR, a different part code
is used for each material.
If you are using O-rings made from other than the standard material, please
contact Mayekawa when placing an order.
2202L5JE-DA-C5-N_2015.05.
7 Related Documents
Compound 2-stage Screw Compressor 7.3 Tightening Torques for Bolts and Nuts
1612LSC Speed Increaser Type
7-9
7.3 Tightening Torques for Bolts and Nuts
Table 7-2 List of Tightening Torques
 Hexagon socket head cap screw
P/N Tightening point Tightening torque Qty. Size
N·m kgf·cm
2-1 Main Rotor Casing (1) to
Suction Cover (1) and Bearing Head (1) 90 900 52 M12×40
2-2 Main Rotor Casing (2) to
Suction Cover (2) and Bearing Head (3) 140 1400 36 M14×40
18-1 Speed increaser gear casing to Bearing Head (3) 140 1400 24 M14×40
18-2 Bearing Head (2) to
Speed Increase Gear Casing 90 900 26 M12×40
24 Balance Piston Cover to Suction Cover (2) 50 500 12 M10×35
34 Balance Piston Sleeve 10 100 1 M6×15
53 Seal Cover to
Speed Increaser Gear Casing Cover 25 250 8 M8×25
58 Unloader Slide Valve
Unloader Slide Valve (2) 25 250 4 M8×30
61 Unloader Cylinder to
Speed Increaser Gear Casing 25 250 8 M8×95
76 Unloader Cylinder Cover to Unloader Cylinder 10 100 8 M6×35
81 Bearing Gland 10 100 3 M6×15
162 Push rod, Unloader Slide Valve 10 100 5 M6×35
166 Oil Injection Pipe Gland 10 100 4 M6×25
195 Speed Increaser Gear Casing Cover to
Speed Increaser Gear Casing 90 900 21 M12×40
456 O-ring Gland to Bearing Head (3) 6 60 4 M5×10
■ Hexagon head screw
P/N Tightening point Tightening torque Qty. Size
N·m kgf·cm
45-1A Thrust bearing gland (1) M 50 500 4 M12×35
45-1B Thrust bearing gland (1) F 40 400 4 M10×30
45-2 Thrust bearing gland (2) 30 300 8 M8×30
94-1 Suction cover flange (1) MYK125A 140 1400 8 M20×55
94-2 Suction cover (intermediate piping) flange (2)
MYK80A 140 1400 4 M20×55
97-1 Discharge cover (intermediate piping) flange (1)
MYK80A 140 1400 4 M20×55
97-2 Discharge cover flange (2) MYK65A 110 1100 4 M16×55
191 Thrust bearing gland
( speed increaser gear spindle) 50 500 4 M12×35
2202L5JE-DA-C5-N_2015.05.
7 Related Documents
Compound 2-stage Screw Compressor 7.3 Tightening Torques for Bolts and Nuts
1612LSC Speed Increaser Type
7-10
 Locknut
P/N Tightening point
Tightening torque
N·m Regular Qty. Size
use
Maximum
39-1A Thrust bearing (1) M 656 820 1 AN14
39-1B Thrust bearing (1) F
Speed increaser driven gear 408 510 2 AN12
39-2 Thrust bearing (2) 206 258 2 AN09
69 Unloader piston 80 — 1 AN05
71 Unloader slide valve 49 61 1 AN06
160 Intermediate gear coupling, drive hub 90 113 1 AN08
193 Thrust bearing, speed increaser gear 522 653 1 AN13
269 Speed increaser drive gear 1186 1483 1 AN17
Note: When tightening a lock nut, if it is difficult to use a torque wrench, manage the tightening torque
of the lock nut controlling the tightening angle range as explained below.
 Tightening Angle Range of Lock Nuts for Rotors
a) After tightening the lock nut by hand, further tighten the lock nut by using a lock nut wrench until the
rotor starts to turn. Take care not to over-tighten.
b) Put a mark on the lock nut at the right side edge of the rotor groove where the stopper tongue of the
lock washer fits in, as shown in Figure 7-9.
c) From this marking position, tighten the lock nut in such a way that rotation can be stopped within the
tightening angle range shown in Table 7-3 (2016**C【39-1】,【39-2】and【160】: 30° to 40°(first time
tightening), 20° to 30°(second time tightening). When measuring the angle, use an angle gauge
which is set to the diameter of rotor shaft.
Table 7-3 Tightening Angles Specified
for Lock Nuts of Rotor
* When tightening lock nut, tightening start position
differs between the first time tightening and the
tightening for the second time or after. Therefore,
angle ranges are specified also for the second
time tightening.
Figure 7-11 Position where mark is put
Angle Gauge (example)
Model Angle range
First time
tightening 125 to 250 30° to 40°
Second time
Marking tightening 125 to 250 20° to 30° Rotor groove (slot)
where stopper tongue of
the lock washer fits
2202L5JE-DA-C5-N_2015.05.
7 Related Documents
Compound 2-stage Screw Compressor 7.4 O-rings for Use
1612LSC Speed Increaser Type
7-11
7.4 O-rings for Use
7.4.1 List of O-rings for Use
Table 7-4 List of O-rings for Use
P/N Used locations JIS-B2401
attached place description in function aspect (mm type)
35 Balance Piston Sleeve same as left G95
49 Oil Seal Retainer same as left G90
59 Oil Injection Pipe Guide Oil Injection Pipe P16
63 Speed Increaser Gear Casing Unloader Cylinder G95
65 Unloader Piston same as left P75
73 Unloader Push Rod Unloader Piston P21
75 Unloader Cover same as left G85
86 Oil Injection Pipe same as left P16
89 Guide Block Stem same as left P16
163 Special specification only for the LLC
type, Guide Block Stem same as left G25
165 Unloader Slide Valve (1) same as left P21
197 Bearing Head (3) Unloader Push Rod P32
7.4.2 List of O-ring Materials for Screw Compressor
Table 7-5 List of O-ring Materials for Screw Compressor
(except for mechanical seal)
Operation fluid O-ring materials
Ammonia
NBR Hydrofluorocarbon (HFC)
Carbon dioxide (CO2) FKM
HNBR
Triflorofluoromethane (R23)
FKM
Propane
Propylene
Natural gas
City gas
Helium

Mycom 2016 C Parts List

P/N Part name Code No. Remarks
Q’ty.
LLC LMC LSC MMC MSC SSC
1-1 Main Rotor Casing (1) CS00100-200L 200L** 1 1 1 - - -
1-1 Main Rotor Casing (1) CS00100-200M 200M** - - - 1 1 -
1-1 Main Rotor Casing (1) CS00100-200S 200S** - - - - - 1
1-2 Main Rotor Casing (2) CS00100-160L 160L** 1 - - - - -
1-2 Main Rotor Casing (2) CS00100-160M 160M** - 1 - 1 - -
1-2 Main Rotor Casing (2) CS00100-160S 160S** - - 1 - 1 1
2-1 Hexagon Socket Head
Cap Screw NB35416-050 M16×50 50 50 50 50 50 50
2-2 Hexagon Socket Head
Cap Screw NB35412-040 M12×40 52 52 52 52 52 52
3-1 Alignment Pin NE2016-055 Φ16×55 4 4 4 4 4 4
3-2 Alignment Pin NE2013-040 Φ13×40 4 4 4 4 4 4
4-1 Eye Bolt NB600-020 M20 1 1 1 1 1 1
4-2 Eye Bolt NB600-016 M16 1 1 1 1 1 1
5-1 Suction Cover (1) CS00500-2016C1 2016**C 1 1 1 1 1 1
5-2 Suction Cover (2) CS00500-2016C2 2016**C 1 1 1 1 1 1
6-1 Gasket, Suction Cover
(1) CS00600-200N 200*** 1 1 1 1 1 1
6-2 Gasket, Suction Cover
(2) CS00600-160N 160*** 1 1 1 1 1 1
7 Eye Bolt NB600-012 M12 2 2 2 2 2 2
8-1 Spring Pin (1) NE3206-012 Φ6×12 2 2 2 2 2 2
8-2 Spring Pin (2) NE3204-010 Φ4×10 2 2 2 2 2 2
9 O-ring PA11-030 JIS B 2401 P30 1 1 1 1 1 1
10-1A Plug NF06-010 R3/8 1 1 1 1 1 1
10-1B Plug NF06-015 R1/2 1 1 1 1 1 1
10-2A Plug NF06-008 R1/4 1 1 1 1 1 1
10-2B Plug NF06-008 R1/4 1 1 1 1 1 1
10-2C Plug NF06-010 R3/8 1 1 1 1 1 1
11-1 Bearing Head (1) CS01100-2016C1 2016**C 1 1 1 1 1 1
11-2 Bearing Head (2) CS01100-2016C2 2016**C 1 1 1 1 1 1
12-1 Gasket, Bearing Head
(1) CS01200-200N 200*** 1 1 1 1 1 1
12-2 Gasket, Bearing Head
(2) CS01200-160N 160*** 1 1 1 1 1 1
13 Eye Bolt NB600-024 M24 2 2 2 2 2 2
14-1 Spring Pin NE320G-012 Φ6×12 2 2 2 2 2 2
14-2 Spring Pin NE3204-010 Φ4×10 2 2 2 2 2 2
15-1A Plug NF06-015 R1/2 1 1 1 1 1 1
15-1B Plug NF06-010 R3/8 1 1 1 1 1 1
16 Bearing Cover CS01600-2016C 2016**C 1 1 1 1 1 1
17-1 Gasket, Bearing Cover
(1) CS01700-2016C1N 2016**C 1 1 1 1 1 1
17-2 Gasket, Bearing Cover
(2) CS01700-2016C2N 2016**C 1 1 1 1 1 1
18-1 Hexagon Socket Head
Cap Screw NB35416-050 M16×50 18 18 18 18 18 18
18-2 Hexagon Socket Head
Cap Screw NB35416-055 M16×55 25 25 25 25 25 25
2201LZJE-HO-C6-N_2015.05.
Chapter 7 Related Documents
Compound 2-stage Screw Compressor 2016**C 7.2 Parts Configuration Table
7-14
P/N Part name Code No. Remarks
Q’ty.
LLC LMC LSC MMC MSC SSC
19-1 Alignment Pin NE2010-050 Φ10×50 2 2 2 2 2 2
19-2 Alignment Pin NE2016-055 Φ16×55 2 2 2 2 2 2
20 Spring Pin NE3203-010 Φ3×10 1 1 1 1 1 1
21 Plug NF06-004 R1/8 1 1 1 1 1 1
22 Balance Piston Cover CS02202-160VD 160*** 1 1 1 1 1 1
23 Gasket, Balance
Piston Cover CS02300-160N 160*** 1 1 1 1 1 1
24 Hexagon Socket Head
Cap Screw NB35410-025 M10×25 11 11 11 1 11 11
25-1 Male Rotor (1)
CS02520-2016LC1 2016L*C 1 1 1 - - -
26-1 Female Rotor (1)
25-1 Male Rotor (1)
CS02520-2016MC1 2016M*C - - - 1 1 -
26-1 Female Rotor (1)
25-1 Male Rotor (1)
CS02520-2016SC1 2016S*C - - - - - 1
26-1 Female Rotor (1)
25-2 Male Rotor (2)
CS02520-2016LC2 2016*LC 1 - - - - -
26-2 Female Rotor (2)
25-2 Male Rotor (2)
CS02520-2016MC2 2016*MC - 1 - 1 - -
26-2 Female Rotor (2)
25-2 Male Rotor (2)
CS02520-2016SC2 2016*SC - 1 -- 1 1-
26-2 Female Rotor (2)
27-1 Main bearing (1) CS0270-ERT 200*** 2 2 2 2 2 2
27-2 Main bearing (2) CS0270-DRT 160*** 2 2 2 2 2 2
28-1 Side bearing (1) CS0280-ERT 200*** 2 2 2 2 2 2
28-2 Side bearing (2) CS0280-DRT 160*** 2 2 2 2 2 2
29-1 Stop Ring (1) NG11-130 H130 4 4 4 4 4 4
29-2 Stop Ring (2) NG11-102 H102 4 4 4 4 4 4
30 Balance Piston CS03000-160 160*** 1 1 1 1 1 1
31 Key, Balance Piston CS03100-160 160*** 1 1 1 1 1 1
32 Stop Ring NG12-050 S50 1 1 1 1 1 1
33 Sleeve, Balance
Piston CS03300-160 160*** 1 1 1 1 1 1
34 Set Screw NA83606-015 M6×15 2 2 2 2 2 2
35 O-ring PA12-095 JIS B 2401 G95 1 1 1 1 1 1
36 Spacer, O-ring CS03600-160 160*** 1 1 1 1 1 1
37 Stop Ring NG11-102 H102 2 2 2 2 2 2
38-1 Thrust Bearing (1) CS03800-200P 7313B 2 2 2 2 2 2
38-2 Thrust Bearing (2) CS03800-160P 7212B 2 2 2 2 2 2
39-1 Lock Nut (1) NG31-013 AN13 2 2 2 2 2 2
39-2 Lock Nut (2) NG31-012 AN12 2 2 2 2 2 2
40-1 Lock Washer (1) NG32-013 AW13 2 2 2 2 2 2
40-2 Lock Washer (2) NG32-012 AW12 2 2 2 2 2 2
41-1 Spacer, Thrust Bearing
(1) CS04100-200 200*** 2 2 2 2 2 2
41-2 Spacer, Thrust Bearing
(2) CS04100-160 160*** 2 2 2 2 2 2
42-1 Spacer,
Thrust Alignment (1) CS04200B200 200*** 2 2 2 2 2 2
42-2 Spacer,
Thrust Alignment (2) CS04200-160 160*** 2 2 2 2 2 2
2201LZJE-HO-C6-N_2015.05.
Chapter 7 Related Documents
Compound 2-stage Screw Compressor 2016**C 7.2 Parts Configuration Table
7-15
P/N Part name Code No. Remarks
Q’ty.
LLC LMC LSC MMC MSC SSC
43-1 Thrust Bearing Gland
(1) CS04300-200S 200*** 2 2 2 2 2 2
43-2 Thrust Bearing Gland
(2) CS043002016C2B 2016**C 2 2 2 2 2 2
45-1 Hexagon Head Bolt NB111012-035 M12×35 8 8 8 8 8 8
45-2 Hexagon Head Bolt NB111010-030 M10×30 8 8 8 8 8 8
46-1 Lock Washer (1) ND150-012 200*** 8 8 8 8 8 8
46-2 Lock Washer (2) ND150-010 160*** 8 8 8 8 8 8
48 Retainer, Oil Seal CS04800-200VDS 200*** 1 1 1 1 1 1
49 O-ring PA12-115 JIS B 2401 G115 1 1 1 1 1 1
50 Oil Seal CS05010-200VD SA1J 65×85×12 1 1 1 1 1 1
51 Seal Cover CS05100-200 200*** 1 1 1 1 1 1
52 Gasket, Seal Cover CS05200-200N 200*** 1 1 1 1 1 1
53 Hexagon Socket Head
Cap Screw NB35410-025 M10×25 8 8 8 8 8 8
54-1 Unloader Slide Valve
(1-1) (L port) CS05400-2016**** 2016LSC 1 1 1 - - -
54-1 Unloader Slide Valve
(1-1) (M port) 2016LSC 1 1 1 - - -
54-1 Unloader Slide Valve
(1-1) (L port) 2016MSC - - - 1 1 -
54-1 Unloader Slide Valve
(1-1) (M port) 2016MSC - - - 1 1 -
54-1 Unloader Slide Valve
(1-1) (L port) 2016SSC - - - - - 1
54-1 Unloader Slide Valve
(1-1) (M port) 2016SSC - - - - - 1
54-2 Unloader Slide Valve
(1-2) (L port) 2016*SC - - 1 - 1 1
54-2 Unloader Slide Valve
(1-2) (M port) 2016*SC - - 1 - 1 1
54-2 Unloader Slide Valve
(1-2) (H port) 2016MSC - - - - 1 -
54-2 Unloader Slide Valve
(1-2) (L port) 2016LLC 1 - - - - -
54-2 Unloader Slide Valve
(1-2) (M port) 2016*LC 1 - - - - -
54-2 Unloader Slide Valve
(1-2) (L port) 2016LMC - 1 - 1 - -
54-2 Unloader Slide Valve
(1-2) (M port) 2016*MC - 1 - 1 - -
55-1 Unloader Slide Valve
(2-1) 200L** 1 1 1 - - -
55-1 Unloader Slide Valve
(2-1) 200M** - - - 1 1 -
55-1 Unloader Slide Valve
(2-1) 200S** - - - - - 1
55-2 Unloader Slide Valve
(2-2) 160L** 1 - - - - -
55-2 Unloader Slide Valve
(2-2) 160M** - 1 - 1 - -
55-2 Unloader Slide Valve
(2-2) 160S** - - 1 - 1 1
58-1 Hexagon Socket Head
Cap Screw NB35410-030 M10×30 4 4 4 4 4 4
58-2 Hexagon Socket Head
Cap Screw NB35408-025 M8×25 4 4 4 4 4 4
59 O-ring PA11-020 JIS B 2401 P20 1 1 1 1 1 1
60-1 Unloader Cylinder CS06000-2016C 2016LSC 1 1 1 1 1 1
2201LZJE-HO-C6-N_2015.05.
Chapter 7 Related Documents
Compound 2-stage Screw Compressor 2016**C 7.2 Parts Configuration Table
7-16
P/N Part name Code No. Remarks
Q’ty.
LLC LMC LSC MMC MSC SSC
60-2 Unloader Cylinder CS06000-160L 160L** 1 - - - - -
60-2 Unloader Cylinder CS06000-160M 160M** - 1 - 1 - -
60-2 Unloader Cylinder CS06000-160S 160S** - - 1 - 1 1
61 Hexagon Socket Head
Cap Screw NB35410-025 M10×25 2 2 2 2 2 2
62-1 Hexagon Socket Head
Cap Screw NB35410-110 M10×110 8 8 8 8 8 8
62-2 Hexagon Socket Head
Cap Screw NB35410-065 M10×65 6 6 6 6 6 6
63 O-ring PA12-125 JIS B 2401 G125 2 2 2 2 2 2
64-1 Unloader Piston (1) CS06400-2016T 2016LSC 1 1 1 1 1 1
64-2 Unloader Piston (2) CS06400-160T 160*** 1 1 1 1 1 1
65 O-ring PA11-100 JIS B 2401 P100 2 2 2 2 2 2
66 Cap Seal CS06600-160 BE100 2 2 2 2 2 2
67-1 Push Rod, Unloader
Slide Valve (1) CS06700-2016C1 2016LSC 1 1 1 1 1 -
67-1 Push Rod, Unloader
Slide Valve (1) CS06700-2016SSC 2016SSC - - - - - 1
67-2 Push Rod, Unloader
Slide Valve (2) CS06700-2016C2 2016LSC - - 1 - 1 1
67-2 Push Rod, Unloader
Slide Valve (2) CS06700-2016LLC 2016LLC 1 - - - - -
67-2 Push Rod, Unloader
Slide Valve (2) CS06700-2016LMC 2016LMC - 1 - 1 - -
68-1 Guide Pin NE2505-012 Φ5×12 1 1 1 1 1 1
68-2 Guide Pin NE2503-008 Φ3×8 1 1 1 1 1 1
69-1 Lock Nut (1) NG31-007 AN07 1 1 1 1 1 1
69-2 Lock Nut (2) NG31-005 AN05 1 1 1 1 1 1
70-1 Lock Washer (1) NG32-007 AW07 1 1 1 1 1 1
70-2 Lock Washer (2) NG32-005 AW05 1 1 1 1 1 1
71-1 Lock Nut (1) NG31-007 AN07 1 1 1 1 1 1
71-2 Lock Nut (2) NG31-005 AN05 1 1 1 1 1 1
72-1 Lock Washer (1) NG32-007 AW07 1 1 1 1 1 1
72-2 Lock Washer (2) NG32-005 AW05 1 1 1 1 1 1
73-1 O-ring PA12-030 JIS B 2401 G30 1 1 1 1 1 1
73-2 O-ring PA11-021 JIS B 2401 P21 1 1 1 1 1 1
74-1 Unloader Cover (1) CS07400-2016S 2016LSC 1 1 1 - - 1
74-1 Unloader Cover (1) CS07400-2016MSC 2016MSC - - - 1 1 -
74-2 Unloader Cover (2) CS07400-160S 160*** 1 1 1 1 1 1
75 O-ring PA12-110 JIS B 2401 G110 2 2 2 2 2 2
76-1 Hexagon Socket Head
Cap Screw NB35408-030 M8×30 8 8 8 8 8 8
76-2 Hexagon Socket Head
Cap Screw NB35408-025 M8×25 8 8 8 8 8 8
77-1 Indicator Cam (1) CS07700-2016C 2016LSC 1 1 1 - - -
77-1 Indicator Cam (1) CS07700-2016MSC 2016MSC - - - 1 1 -
77-1 Indicator Cam (1) CS07700-2016SSC 2016SSC - - - - - 1
77-2 Indicator Cam (2) CS07700-160L 160L** 1 - - - - -
77-2 Indicator Cam (2) CS07700-160M 160M** - 1 - 1 - -
77-2 Indicator Cam (2) CS07700-160S 160S** - - 1 - 1 1
78 Ball Bearing CS07800-200 #6000 2 2 2 2 2 2
2201LZJE-HO-C6-N_2015.05.
Chapter 7 Related Documents
Compound 2-stage Screw Compressor 2016**C 7.2 Parts Configuration Table
7-17
P/N Part name Code No. Remarks
Q’ty.
LLC LMC LSC MMC MSC SSC
79 Stop Ring NG12-010 S10 2 2 2 2 2 2
80 Bearing Gland CS08000-200 200*** 2 2 2 2 2 2
81 Hexagon Socket Head
Cap Screw NB35406-015 M6×15 6 6 6 6 6 6
82 V-ring CS08200-200B 20×10×12 2 2 2 2 2 2
83 Spring CS08300-200 200*** 2 2 2 2 2 2
84 Retainer, Indicator
Cam Spring CS08400-200 200*** 2 2 2 2 2 2
85 Oil Injection Pipe CS08500-200LUK 200LU* 1 1 1 - - -
85 Oil Injection Pipe CS08500-2016MSC 2016MSC - - - 1 1 -
85 Oil Injection Pipe CS08500-2016SSK 2016SSC - - - - - 1
86 O-ring PA11-021 JIS B 2401 P21 1 1 1 1 1 1
87-1 Guide Block (1) CS08700-200 200*** 1 1 1 1 1 1
87-2 Guide Block (2) CS08700-160 160*** 1 1 1 1 1 1
88-1 Stem, Guide Block (1) 200&250*** 1 1 1 1 1 1
88-2 Stem, Guide Block (2) 160*** 1 1 1 1 1 1
89-1 O-ring PA11-020 JIS B 2401 P20 2 2 2 2 2 2
89-2 O-ring PA11-016 JIS B 2401 P16 2 2 2 2 2 2
91 Shaft key (1) CS09100-200 200*** 1 1 1 1 1 1
92-1 Suction Flange (1) CS71300-150 JIS 20K 150A(6") 1 1 1 1 1 1
92-2 Suction Flange (2) CS71300-100 JIS 20K 100A(4") 1 1 1 1 1 1
93-1 Gasket, Suction
Flange (1) CS71200-150N JIS 20K 150A(6") 1 1 1 1 1 1
93-2 Gasket, Suction
Flange (2) CS71200-100N JIS 20K 100A(4") 1 1 1 1 1 1
94-1 Hexagon Head Bolt NB12022-055 M22×55 12 12 12 12 12 12
94-2 Hexagon Head Bolt NB12020-055 M20×55 8 8 8 8 8 8
95-1 Discharge Flange (1) CS71300-100 JIS 20K 100A(4") 1 1 1 1 1 1
95-2 Discharge Flange (2) CS71300-080 JIS 20K 80A(3") 1 1 1 1 1 1
96-1 Gasket, Discharge
Flange (1) CS71200-100N JIS 20K 100A(4") 1 1 1 1 1 1
96-2 Gasket, Discharge
Flange (2) CS71200-080N JIS 20K 80A(3") 1 1 1 1 1 1
97-1 Hexagon Head Bolt NB12020-055 M20×55 8 8 8 8 8 8
97-2 Hexagon Head Bolt NB12020-055 M20×55 8 8 8 8 8 8
100 Mechanical Seal
Assembly (BBSE) CS10002-200EBS BBS-E 1 1 1 1 1 1
120-1 Unloader Indicator
Assembly (1) CS12000-1612F 1612LSC 1 1 1 1 1 1
120-2 Unloader Indicator
Assembly (2) CS12000-200F 200*** 20-100 % 1 1 1 1 1 1
151 Driven Sleeve CS15100-2016 1 1 1 1 1 1
152 Drive Hub 1 1 1 1 1 1
153 Driven Hub 1 1 1 1 1 1
154 Stopper, Driven Sleeve CS15400-2016C 2 2 2 2 2 2
155 Stop Ring FRS-90 4 4 4 4 4 4
157 Key, Driven Hub CS15700-2016C 1 1 1 1 1 1
158 Key, Drive Hub CS15800-2016C 1 1 1 1 1 1
159 Set Screw NA83608-015 M8×15 knurled
with anti-loosening 1 1 1 1 1 1
160 Lock Nut NG31-010 AN10 1 1 1 1 1 1
161 Lock Washer NG32-010 AW10 1 1 1 1 1 1
2201LZJE-HO-C6-N_2015.05.
Chapter 7 Related Documents
Compound 2-stage Screw Compressor 2016**C 7.2 Parts Configuration Table
7-18
P/N Part name Code No. Remarks
Q’ty.
LLC LMC LSC MMC MSC SSC
162 Hexagon Socket Head
Cap Screw NB35406-045 M8×45 5 5 5 5 5 5
163 O-ring PA12-025 JIS B 2401 G25 1 1 1 1 1 1
164 Retainer, Oil Injection
Pipe CS16400-2016C 1 1 1 1 1 1
165 O-ring PA12-025 JIS B 2401 G25 1 1 1 1 1 1
166 Hexagon Socket Head
Cap Screw NB35408-030 M8×30 4 4 4 4 4 4
168 Pipe Guide, Oil
Injection CS16800-2016 1 1 1 1 1 1
197 O-ring PA11-040 JIS B 2401 P40 1 1 1 1 1 1
215-1 Flange, Lubrication Oil
Supply (1) CS71300-025 JIS 20K 25A(1") 1 1 1 1 1 1
215-2 Flange, Lubrication Oil
Supply (2) CS71300-020 JIS 20K 20A(3/4") 1 1 1 1 1 1
216-1 Gasket, Lubrication Oil
Supply Flange (1) CS71200-025N JIS 20K 25A 1 1 1 1 1 1
216-2 Gasket, Lubrication Oil
Supply Flange (2) CS71200-020N JIS 20K 20A 1 1 1 1 1 1
217-1 Hexagon Head Bolt NB111016-045 M16×45 4 4 4 4 4 4
217-2 Hexagon Head Bolt NB111012-035 M12×35 4 4 4 4 4 4
218 Flange, Injection Oil
Supply CS71300-015 JIS 20K 15A(1/2") 1 1 1 1 1 1
219 Gasket, Injection Oil
Supply Flange CS71200-015N JIS 20K 15A 1 1 1 1 1 1
220 Hexagon Head Bolt NB111012-035 M12×35 4 4 4 4 4 4
237-1 Torsional Slip Washer
(1) CS23700-200 200*** 2 2 2 2 2 2
237-2 Torsional Slip Washer
(2) CS23700-160 160*** 2 2 2 2 2 2
245
Special Spring Washer
for Hexagon Socket
Head Cap Screw
ND330-08 M8 5 5 5 5 5 5
250-1 Thrust Washer (1) CS25000-200 200*** 2 2 2 2 2 2
250-2 Thrust Washer (2) CS25000-160 160*** 2 2 2 2 2 2
267-1
Special Spring Washer
for Hexagon Socket
Head Cap Screw
ND330-10 M10 4 4 4 4 4 4
267-2
Special Spring Washer
for Hexagon Socket
Head Cap Screw
ND330-08 M8 4 4 4 4 4 4
420 Unload Spacer CS42000-160L20
For 2016*LC(2)
20 % load 1 - - - - -
420 Unload Spacer CS42000-160M20
For 2016*MC(2)
20 % load - 1 - 1 - -
420 Unload Spacer CS42000-160S20
For 2016*SC(2)
20 % load - - 1 - 1 1
421 O-ring PA12-030 JIS B 2401 G30 - - 1 - 1 1
421 O-ring PA11-030 JIS B 2401 P30 2 2 - 1 - -
423 Unload spacer Used for MSC
low-stage only. - - - 1 1 -
424 Hexagon Socket Head
Cap Screw NB35406-020 M6×20 Note 1 - - - 3 3 -
432-1 O-ring PA62-022 AS568A-244
(JIS W1516 G22) 4 4 4 4 4 4
432-2 O-ring PA12085 JISB2401 1A G85 4 4 4 4 4 4
433-1 O-ring PA62022 AS568A-244
(JIS W1516 G22) 4 4 4 4 4 4
2201LZJE-HO-C6-N_2015.05.
Chapter 7 Related Documents
Compound 2-stage Screw Compressor 2016**C 7.2 Parts Configuration Table
7-19
P/N Part name Code No. Remarks
Q’ty.
LLC LMC LSC MMC MSC SSC
433-2 O-ring PA12-085 JIS B 2401 G85 4 4 4 4 4 4
528 Sleeve, Oil Seal CS52809-200VD 200V** with O-ring 1 1 1 1 1 1
529 Set Screw NA83606-008 M6×8 2 2 2 2 2 2
605-1 Plug NF06-008 R3/4 1 1 1 1 1 1
605-2 Plug NF06-015 R1/2 1 1 1 1 1 1
607 Plug NF06-004 R1/8 1 1 1 1 1 1
702 O-ring PA12-100 JIS B 2401 G100
Note 1 - - - 1 1 -
744 O-ring PA12-060 JISB2401 1A G60 1 1 1 1 1 1
- O-ring Set CS7109-0K 2016C NBR
- O-ring Set CS7109-5K 2016C FPM
- Gasket Set CS7118-0K 2016C
- Lock Nut and Washer
Set CS8009-K 2016C
 The part code of the O-ring except for "O-ring set 2016C FKM" is the one
assigned to NBR which is standard material. When the material of the O-ring is
other than NBR, a different part code is used for each material.
If you are using O-rings made from other than the standard material, please
contact MAYEKAWA when placing an order.
Note 1: The hexagon socket head cap screw (No. 424) is used to fasten the unload spacer (No. 423),
which is for the exclusive use of the MSC low-stage, to the unloader cover (No. 74-1). In April
2007, this spacer and the explosion proof type unloader piston spacer were standardized
according to the design change. As a result, the use of this part is discontinued. One piece of
O-ring (No.702) (JIS B 2401 G100) is used instead of this part. According to this design
change, the use of the MSC unloader cover (1) with bolt hole for spacer is also discontinued.
The MSC unloader cover and the LSC unloader cover are shared/standardized.
2201LZJE-HO-C6-N_2015.05.
Chapter 7 Related Documents
Compound 2-stage Screw Compressor 2016**C 7.3 Tightening Torques for Bolts and Nuts
7-20
7.3 Tightening Torques for Bolts and Nuts
Table 7-2 List of Tightening Torques
 Hexagon socket head cap screw
P/N What is tightened
Tightening
torque Q’ty. Size
N·m kgf·cm
2-1 Main Rotor Casing (1) to
Suction Cover (1) and Bearing Head (1) 240 2400 50 M16×50
2-2 Main Rotor Casing (2) to
Suction Cover (2) and Bearing Head (2) 90 900 52 M12×40
18-1 Bearing Cover to Bearing Head (1) 240 2400 18 M16×50
18-2 Bearing Head (2) to Suction Cover (1) 240 2400 25 M16×55
24 Balance Piston Cover to Suction Cover (2) 50 500 11 M10×25
53 Seal Cover to Bearing Cover 50 500 8 M10×25
58-1 For Securing Unloader Slide Valve 50 500 4 M10×30
58-2 For Securing Unloader Slide Valve 25 250 4 M8×25
61 Unloader Cylinder (2) to Balance Piston Cover 50 500 2 M10×25
62-1 Unloader Cylinder (1) to
Bearing Cover and Bearing Head (1) 50 500 8 M10×110
62-2 Unloader Cylinder (2) to
Balance Piston Cover and Suction Cover 50 500 6 M10×65
76-1 Unloader Cylinder Cover (1) to Unloader Cylinder (1) 25 250 8 M8×30
76-2 Unloader Cylinder Cover (2) to Unloader Cylinder (2) 25 250 8 M8×25
81 Bearing Gland 10 100 6 M6×15
162 Push Rod, Unloader Slide Valve (1) 25 250 5 M8×45
166 Retainer, Oil Injection Pipe 25 250 4 M8×30
 Hexagon Head Bolt
P/N What is tightened
Tightening
torque Q’ty. Size
N·m kgf·cm
45-1 Thrust Bearing Gland (1) 50 500 8 M12×35
45-2 Thrust Bearing Gland (2) 40 400 8 M10×30
94-1 Suction Flange (1) JIS20K 150A 240 2400 12 M22×55
94-2 Suction Flange (intermediate pipe) (2) JIS20K 100A 180 1800 8 M20×55
97-1 Discharge Flange (intermediate pipe) (1) JIS20K 100A 180 1800 8 M20×55
97-2 Discharge Flange (2) JIS20K 80A 120 1200 8 M16×55
2201LZJE-HO-C6-N_2015.05.
Chapter 7 Related Documents
Compound 2-stage Screw Compressor 2016**C 7.3 Tightening Torques for Bolts and Nuts
7-21
 Lock Nut
P/N What is tightened
Tightening torque (N·m)
Q’ty. Size
Standard Maximum
39-1 Thrust Bearing (1) Note 1 522 653 2 AN13
39-2 Thrust Bearing (2) Note 1 408 510 2 AN12
69-1 Unloader Piston (1) 120 - 1 AN07
69-2 Unloader Piston (2) 80 - 1 AN05
71-1 Unloader Slide Valve (1-1) 79 99 1 AN07
71-2 Unloader Slide Valve (1-2) 28 35 1 AN05
160 Gear Coupling Drive Hub Note 1 238 297 1 AN10
Note 1: When tightening a lock nut, if it is difficult to use a torque wrench, manage the tightening
torque of the lock nut controlling the tightening angle range as explained below.
 Tightening Angle Range of Lock Nuts for Rotors
a) After tightening the lock nut by hand, further tighten the lock nut by using a lock nut wrench
until the rotor starts to turn. Take care not to over-tighten.
b) Put a mark on the lock nut at the right side edge of the rotor groove where the stopper tongue
of the lock washer fits in, as shown in Figure 7-9.
c) From this marking position, tighten the lock nut in such a way that rotation can be stopped
within the tightening angle range shown in Table 7-3 (2016**C【39-1】,【39-2】and【160】:
30° to 40°(first time tightening), 20° to 30°(second time tightening). When measuring the
angle, use an angle gauge which is set to the diameter of rotor shaft.
Table 7-3 Tightening Angles Specified
for Lock Nuts of Rotor
* When tightening lock nut, tightening start position differs
between the first time tightening and the tightening for
the second time or after. Therefore, angle ranges are
specified also for the second time tightening.
Figure 7-9 Position where mark is put
Photo 122 Angle Gauge (example)
Model Angle range
2016**C
Low-stage
High-stage
First time tightening 30° to 40°
Rotor groove (slot) Marking Second time tightening 20° to 30°
where stopper tongue of
the lock washer fits
2201LZJE-HO-C6-N_2015.05.
Chapter 7 Related Documents
Compound 2-stage Screw Compressor 2016**C 7.4 About the O-rings Used
7-22
7.4 About the O-rings Used
7.4.1 List of O-rings Used
Table 7-4 List of O-rings Used
P/N
Location nominal
attached place description in functional aspect symbols
9 Suction Cover (2) Push Rod P30
35 Sleeve, Balance Piston same as left G95
49 Oil Seal Retainer same as left G115
59 Pipe Guide, Oil Injection Oil Injection Pipe P20
63 Bearing Cover, Balance Piston Cover Unloader Cylinder (1), (2) G125
65 Unloader Piston (1), (2) same as left P100
73-1 Unloader Push Rod (1) Unloader Piston (1) G30
73-2 Unloader Push Rod (2) Unloader Piston (2) P21
75 Unloader Cylinder Cover (1), (2) same as left G110
86 Oil Injection Pipe same as left P21
89-1 Stem, Guide block (1) same as left P20
89-2 Stem, Guide block (2) same as left P16
163 Unloader Slide Valve (1) same as left G25
165 Gland, Oil Injection Pipe same as left G25
197 Bearing Cover Push Rod, Unloader Slide Valve (1) P40
421 Unload Spacer 2016*SC (2) same as left G30
421 Unload Spacer 2016*LC (2), *MC (2) same as left P30
432-1 Main Bearing (1) same as left AS568A-244
432-2 Main Bearing (2) same as left G85
433-1 Side Bearing (1) same as left AS568A-244
433-2 Side Bearing (2) same as left G85
702 Unloader Spacer (used for MSC low-stage only) same as left G100
744 Sleeve, Oil Seal same as left G60
■ Designation codes are based on JIS B 2401 except AS568A-244.
■ Attached place means parts which they have grooves or with taper cutting for attaching O-ring.
7.4.2 O-ring Materials Used for Screw Compressor
Table 7-5 List of O-ring Materials Used for Screw Compressor
(excluding mechanical seal)
Working fluid O-ring material
Ammonia
Hydrofluorocarbon (HFC) NBR
CO2 FKM
HNBR
Trifluoromethane (R23)
FKM
Propane
Propylene
Natural gas
City gas
Helium

Mycom 2520 C Parts List

P/N Part Name Code No. Remarks Qty
1-1 Main Rotor Casing (1) CS00100-250L 250L** 1 (L*C)
1-1 Main Rotor Casing (1) CS00100-250M 250M** 1 (M*C)
1-1 Main Rotor Casing (1) CS00100-250S 250S** 1 (S*C)
1-2 Main Rotor Casing (2) CS00100-200L 200L** 1 (*LC)
1-2 Main Rotor Casing (2) CS00100-200M 200M** 1 (*MC)
1-2 Main Rotor Casing (2) CS00100-200S 200S** 1 (*SC)
2-1 Hexagon Socket Head Cap Screw NB35420-060 M20×60 44
2-2 Hexagon Socket Head Cap Screw NB35416-050 M16×50 50
3-1 Alignment Pin NE2016-070 Φ16×70 4
3-2 Alignment Pin NE2016-055 Φ16×55 4
4-1 Eye Bolt NB600-30 M30 1
4-2 Eye Bolt NB600-24 M24 1
5-1 Suction Cover (1) CS00500-2520C1 2520**C 1
5-2 Suction Cover (2) CS00500-2520C2 2520**C 1
6-1 Gasket, Suction Cover (1) CS00600-250N 250*** 1
6-2 Gasket, Suction Cover (2) CS00600-200N 200*** 1
7-1 Eye Bolt NB600-12 M12 2
7-2 Eye Bolt NB600-12 M12 1
8-1 Spring Pin (1) NE3206-012 Φ6×12 2
8-2 Spring Pin (2) NE3206-012 Φ6×12 2
9 O-ring PA11-040 JIS B 2401 P40 1
10-1A Plug NF06-15 R1/2 3
10-1B Plug NF06-10 R3/8 2
10-2 Plug NF06-008 R1/4 1
11-1 Bearing Head (1) CS01100-2520C1 2520**C 1
11-2 Bearing Head (2) CS01100-2520C2 2520**C 1
12-1 Gasket, Bearing Head (1) CS01200-250N 250*** 1
12-2 Gasket, Bearing Head (2) CS01200-200N 200*** 1
13-1 Eye Bolt NB600-36 M36 1
13-2 Eye Bolt NB600-36 M36 1
14-1 Spring Pin NE3206-012 Φ6×12 2
14-2 Spring Pin NE3206-012 Φ6×12 2
15-1 Plug NF06-020 R3/4 1
16 Bearing Cover CS01600-2520C 2520**C 1
17-1 Gasket, Bearing Cover (1) CS01700-2520C1N 2520**C 1
17-2 Gasket, Bearing Cover (2) CS01700-2520C2N 2520**C 1
18-1 Hexagon Socket Head Cap Screw NB35416-050 M16×50 20
18-2 Hexagon Socket Head Cap Screw NB35420-060 M20×60 33
19-1 Alignment Pin NE2010-050 Φ10×50 2
19-2 Alignment Pin NE2016-070 Φ16×70 2
20 Spring Pin NE3203-010 Φ3×10 1
21 Plug NF06-004 R1/8 1
22 Balance Piston Cover CS02200-2520C 2520**C 1
23 Gasket, Balance Piston Cover CS02300-2520CN 2520**C 1
24 Hexagon Socket Head Cap Screw NB35416-050 M16×50 18
25-1 Male Rotor (1)
- 2520L*C 1 (L*C)
26-1 Female Rotor (1)
25-1 Male Rotor (1)
- 2520M*C 1 (M*C)
26-1 Female Rotor (1)
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Compound 2-stage Screw Compressor 2520**C 7.2 Parts Configuration Table
7-17
P/N Part Name Code No. Remarks Qty
25-1 Male Rotor (1)
- 2520S*C 1 (S*C)
26-1 Female Rotor (1)
25-2 Male Rotor (2)
- 2520*LC 1 (*LC)
26-2 Female Rotor (2)
25-2 Male Rotor (2)
- 2520*MC 1 (*MC)
26-2 Female Rotor (2)
25-2 Male Rotor (2)
- 2520*SC 1 (*SC)
26-2 Female Rotor (2)
27-1 Main Bearing (1) CS0270-FRT 250*** with O-ring 2
27-2 Main Bearing (2) CS0270-ERT 200*** with O-ring 2
28-1 Side Bearing (1) CS0280-FRT 250*** with O-ring 2
28-2 Side Bearing (2) CS0280-ERT 200*** with O-ring 2
29-1 Snap Snap Ring (1) C type internal NG11-160 H160 4
29-2 Snap Ring (2) C type internal NG11-130 H130 4
30 Balance Piston CS03000-2520C 2520**C 1
31 Key, Balance Piston CS03100-200 200*** 1
32 Snap Ring C type external NG12-065 S65 1
33 Sleeve, Balance Piston CS03300-2520C 2520**C 1
34 Set Screw NA83608-015 M8×15 2
35 O-ring PA11-140 JIS B 2401 P140 1
37 Snap Ring C type internal NG11-150 H150 1
38-1 Thrust Bearing (1) CS03800-250P 7317B PPS 2
38-2 Thrust Bearing (2) CS03800-200P 7313B PPS 2
39-1 Lock Nut (1) NG31-017 AN17 2
39-2 Lock Nut (2) NG31-013 AN13 2
40-1 Lock Washer (1) NG32-017 AW17 2
40-2 Lock Washer (2) NG32-013 AW13 2
41-2 Spacer, Thrust Bearing Outer Race (2) CS04100-200 200*** 2
42-1 Spacer, Thrust Bearing Alignment (1) CS04200-B250 250*** 2
42-2 Spacer, Thrust Bearing Alignment (2) CS04200-200 200*** 2
43-1 Thrust Bearing Gland (1) CS04300-250S 250*** 2
43-2A Thrust Bearing Gland (2) A CS04300-200S 200*** 2
43-2B Thrust Bearing Gland (2) B CS04300-2520C2B 2520**C 1
43-2C Thrust Bearing Gland (2) C CS04300-2520C2C 2520**C 1
43-2D Thrust Bearing Gland (2) D CS04300-2520C2D 2520**C 1
45-1 Hexagon Head Bolt NB111016-045 M16×45 8
45-2 Hexagon Head Bolt NB111012-035 M12×35 8
46-1 Conical Spring Washer (1) ND150-016 250*** 8
46-1 Lock Washer (1) Set (old, plate type) CS0469-F 250*** 8ps/set -
46-2 Conical Spring Washer (2) ND150-012 200*** 8
46-2 Lock Washer (2) Set (old, plate type) CS0469-E 200*** 8ps/set -
48 Retainer, Oil Seal CS04800-250VDS 250V** 1
49 O-ring PA12-135 JIS B 2401 G135 1
50 Oil Seal CS05010-250VD SA1J 75×100×13 1
51 Seal Cover CS05102-250 250*** 1
52 Gasket, Seal Cover CS05200-250N 250*** 1
53 Hexagon Socket Head Cap Screw NB35412-030 M12×30 8
54-1 Unloader Slide Valve (1-1) (L Port) CS05400-2520**** 2520LSC 1 (L*C)
54-1 Unloader Slide Valve (1-1) (M Port) - 2520LSC 1 (L*C)
54-1 Unloader Slide Valve (1-1) (L Port) - 2520MSC 1 (M*S)
54-1 Unloader Slide Valve (1-1) (M Port) - 2520MSC 1 (M*C)
54-1 Unloader Slide Valve (1-1) (L Port) - 2520SSC 1 (S*C)
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Compound 2-stage Screw Compressor 2520**C 7.2 Parts Configuration Table
7-18
P/N Part Name Code No. Remarks Qty
54-1 Unloader Slide Valve (1-1) (M Port) - 2520SSC 1 (S*C)
54-2 Unloader Slide Valve (1-2) (L Port) - 2520LSC 1 (*SC)
54-2 Unloader Slide Valve (1-2) (M Port) - 2520LSC 1 (*SC)
54-2 Unloader Slide Valve (1-2) (L Port) - 2520LMC 1 (*MC)
54-2 Unloader Slide Valve (1-2) (M Port) - 2520LMC 1 (*MC)
54-2 Unloader Slide Valve (1-2) (L Port) - 2520SLC 1 (*LC)
54-2 Unloader Slide Valve (1-2) (M Port) - 2520SLC 1 (*LC)
55-1 Unloader Slide Valve (2-1) - 250L** 1 (L*C)
55-1 Unloader Slide Valve (2-1) - 250M** 1 (M*C)
55-1 Unloader Slide Valve (2-1) - 250S** 1 (S*C)
55-2 Unloader Slide Valve (2-2) - 200L** 1 (*LC)
55-2 Unloader Slide Valve (2-2) - 200M** 1 (*MC)
55-2 Unloader Slide Valve (2-2) - 200S** 1 (*SC)
58-1 Hexagon Socket Head Cap Screw NB35412-040 M12×40 4
58-2 Hexagon Socket Head Cap Screw NB35410-030 M10×30 4
59 O-ring PA11-026 JIS B 2401 P26 1
60-1 Unloader Cylinder (1) CS06000-2520C1 2520LSC 1
60-2 Unloader Cylinder (2) CS06000-2520C2 2520LSC 1
(*MC/*SC)
60-2 Unloader Cylinder (2) CS06000-2520SLC 2520SLC 1 (*LC)
61-1 Hexagon Socket Head Cap Screw NB35416-140 M16×140 9
61-2 Hexagon Socket Head Cap Screw NB35412-090 M12×90 9
63-1 O-ring PA12-150 JIS B 2401 G150 1
63-2 O-ring PA12-150 JIS B 2401 G150 1
64-1 Unloader Piston (1) CS06400-2520T 2520**C 1
64-2 Unloader Piston (2) CS06400-200T 200*** 1
65-1 O-ring PA11-125 JIS B 2401 P125 1
65-2 O-ring PA11-125 JIS B 2401 P125 1
66-1 Cap Seal CS06600-200 200*** BE125 1
66-2 Cap Seal CS06600-200 200*** BE125 1
67-1 Push Rod, Unloader Slide Valve (1) CS06700-2520C1 2520LSC 1
67-2 Push Rod, Unloader Slide Valve (2) CS06700-2520C2 2520LSC 1 (*SC)
67-2 Push Rod,Unloader Slide Valve (2) CS06700-2520SLC 2520LMC 1 (*MC)
67-2 Push Rod, Unloader Slide Valve (2) CS06700-2520C2 2520SLC 1 (*LC)
68-1 Guide Pin NE2505-012 Φ5×12 1
68-2 Guide Pin NE2505-012 Φ5×12 1
69-1 Lock Nut (1) NG31-008 AN08 1
69-2 Lock Nut (2) NG31-007 AN07 1
70-1 Lock Washer (1) NG32-008 AW08 1
70-2 Lock Washer (2) NG32-007 AW07 1
71-1 Lock Nut (1) NG31-008 AN08 1
71-2 Lock Nut (2) NG31-007 AN07 1
72-1 Lock Washer (1) NG32-008 AW08 1
72-2 Lock Washer (2) NG32-007 AW07 1
73-1 O-ring PA12-035 JIS B 2401 G35 1
73-2 O-ring PA12-030 JIS B 2401 G30 1
74-1 Unloader Cover (1) CS07460-200 200*** 1
74-2 Unloader Cover (2) CS07400-200S 200*** 1
75 O-ring PA12-135 JIS B 2401 G135 2
76 Hexagon Socket Head Cap Screw NB35410-025 M10×25 16
77-1 Indicator Cam (1) CS07700-2520C 2520LSC 1 (L*C)
77-1 Indicator Cam (1) CS07700-200S 2520MSC 1 (M*C)
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Compound 2-stage Screw Compressor 2520**C 7.2 Parts Configuration Table
7-19
P/N Part Name Code No. Remarks Qty
77-1 Indicator Cam (1) CS07700-2520SSC 2520SSC 1 (S*C)
77-2 Indicator Cam (2) CS07700-200L 200L** 1 (*LC)
77-2 Indicator Cam (2) CS07700-200M 200M** 1 (*MC)
77-2 Indicator Cam (2) CS07700-200S 200S** 1 (*SC)
78 Ball Bearing CS07800-200 #6000 2
79 Snap Ring C type external NG12-010 S10 2
80 Bearing Gland CS08000-200 200*** 2
81 Hexagon Socket Head Cap Screw NB35406-015 M6×15 6
82 V-ring CS08200-200B VH10 NBR 2
83 Spring CS08300-200 200*** 2
84 Retainer, Indicator Cam Spring CS08400-200 200*** 2
85 Oil Injection Pipe CS08500-250LUK 250L** 1 (L*C)
85 Oil Injection Pipe CS08500-2520US
C 2520MSC 1 (M*C)
85 Oil Injection Pipe CS08500-2520SSK 2520SSC 1 (S*C)
86 O-ring PA12-025 JIS B 2401 G25 1
87-1 Guide Block (1)
CS08700-250 250***
1
88-1 Stem, Guide Block (1) 1
87-2 Guide Block (2)
CS08700-200 200***
1
88-2 Stem, Guide Block (2) 1
89 O-ring PA11-020 JIS B 2401 P20 4
91 Shaft Key CS09100-250 250*** 1
92-1 Suction Flange (1) with hole CS71300-250MK JIS 20K 250A(10") -
92-1 Suction Flange (1) without hole CS71300-P250 JIS 20K 250A(10") 1
92-2 Suction Flange (2) with hole CS71300-150MK JIS 20K 150A(6") -
92-2 Suction Flange (2) without hole CS71300-P150 JIS 20K 150A(6") 1
93-1 Gasket, Suction Flange (1) CS71200-250N JIS 20K 250A(10") 1
93-2 Gasket, Suction Flange (2) CS71200-150N JIS 20K 150A(6") 1
94-1 Hexagon Head Bolt NB12024-065 M24×65 12
94-2 Hexagon Head Bolt NB12022-055 M22×55 12
95-1 Discharge Flange (1) with hole CS71300-150MK JIS 20K 150A(6") -
95-1 Discharge Flange (1) without hole CS71300-P150 JIS 20K 150A(6") 1
95-2 Discharge Flange (2) with hole CS71300-100MK JIS 20K 100A(4") -
95-2 Discharge Flange (2) without hole CS71300-P100 JIS 20K 100A(4") 1
96-1 Gasket,
Discharge Flange (1) CS71200-150N JIS 20K 150A(6") 1
96-2 Gasket, Discharge Flange (2) CS71200-100N JIS 20K 100A(4") 1
97-1 Hexagon Head Bolt NB12022-055 M22×55 12
97-2 Hexagon Head Bolt NB12020-055 M20×55 8
100 Mechanical Seal Assembly (BOS-E1) CS10000-250BE 250V** BOS -
100 Mechanical Seal Assembly (BBSE) CS10002-250EBS BBS-E 1
100 Mechanical Seal Assembly (BBS3) CS10001-250BBS BBS3 -
120-1 Unloader Indicator Assembly (1) CS12000-200F 200*** 1
120-2 Unloader Indicator Assembly (2) CS12000-2016 2016C(2) 20-100 % 1
125 Micro-Switch CS12500-200 200*** Z15GW 4
127-1 Micro-Switch Cam (1) CS12700-200F 200*** 0-100 % 1
127-2 Micro-Switch Cam (2) CS12700-201620 2016C(2) 20-100 % 1
128 Set Screw, Bevel Gear NA83604-005 M4×5 2
129 Potentiometer 200-1k CS1299-E10 with lead wire 2
137-1 Indicator Dial (1) CS13700-200 200*** 1
137-2 Indicator Dial (2) CS13700-2016 2016C(2) 20-100 % 1
- Gear Coupling Assembly (new) CS1519-L 151+152+153+159 1
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Compound 2-stage Screw Compressor 2520**C 7.2 Parts Configuration Table
7-20
P/N Part Name Code No. Remarks Qty
151 Driven Sleeve CS1519-L
(same as old and
new type)
1
152 Drive Hub 1
153 Driven Hub 1
154 Stopper, Drive Sleeve CS15400-2520C Old part of coupling (2)
155 Stop Ring - Old part of coupling (2)
157 Key, Driven Hub CS15700-2520CH FRS-110 1
158 Key, Drive Hub CS15800-2520CH FRS-110 1
159 Set Screw NA83612-020 M12×20 knurled,
with anti-loosening 1
160 Lock Nut NG31-013 AN13 1
161 Lock Washer NG32-013 AW13 1
162 Hexagon Socket Head Cap Screw NB35412-045 M12×45 5
163 O-ring PA12-035 JIS B 2401 G35 1
164 Retainer, Oil Injection Pipe CS16400-2520C 2520LSC 1
165 O-ring PA12-030 JIS B 2401 G30 1
166 Hexagon Socket Head Cap Screw NB35408-030 M8×30 4
168 Pipe Guide, Oil Injection CS16800-2520C 2520LSC 1
197 O-ring PA11-050 JIS B 2401 P50 1
200 Fixture Ass’y, Unloader Indicator (1) CS20000-2520C 2520LSC(1) 1
200A Fixture, Unloader Indicator (A) CS20000-2520CA 2520LSC 1
200B Fixture, Unloader Indicator (B) CS20000-2520CB 2520LSC 1
201 Bevel Gear (1) CS20100-1612C9 1612LSC (Φ9) 1
202 Bevel Gear (2) CS20100-1612C6 1612LSC( Φ6) 1
206 Glass Gland, Unloader Indicator CS20600-1612 1612LSC 1
208 Shaft, Unloader Indicator CS12200-2520 2520LSC 1
208A Snap Ring, Unloader Indicator Shaft NG12-010 S10 C type external 2
208B Bearing, Unloader Indicator Shaft CS16460-200 #6000LL 2
210 Cross-recessed and Pan Head Screw NB35405-015 M5×15 4
212A Hexagon Socket Head Cap Screw NB35405-030 M8×30 2
212B Hexagon Socket Head Cap Screw NB35408-095 M8×95 2
212C Hexagon Socket Head Cap Screw NB35408-020 M8×20 4
212D Spring Washer ND320-008 For M8 8
215-1 Flange, Lubricating Oil Supply (1)
without hole CS71300-025 JIS 20K 25A(1") 1
215-2 Flange, Lubricating Oil Supply (2)
without hole CS71300-020 JIS 20K 20A(3/4") 1
216-1 Gasket, Lubricating Oil Supply Flange
(1) CS71200-025N JIS 20K 25A(1") 1
216-2 Gasket, Lubricating Oil Supply Flange
(2) CS71200-020N JIS 20K 20A(3/4") 1
217-1 Hexagon Head Bolt NB12016-045 M16×45 4
217-2 Hexagon Head Bolt NB12012-035 M12×35 4
218 Flange, Injection Oil Supply without
hole CS71300-015 JIS 20K 15A(1/2") 1
219 Gasket, Injection Oil Supply Flange CS71200-015N JIS 20K 15A(1/2") 1
220 Hexagon Head Bolt NB111012-035 M12×35 4
237-1 Torsional Slip Washer (1) CS23700-250 250*** 2
237-2 Torsional Slip Washer (2) CS23700-200 200*** 2
245 Spring Washer ND330-12 M12 5
250-1 Thrust Bearing Washer (1) CS25000-250 250*** 2
250-2 Thrust Bearing Washer (2) CS25000-200 200*** 1
267-1 Spring Washer, Hexagon Socket Head
Cap Screw ND330-12 M12 4
267-2 Spring Washer, Hexagon Socket Head
Cap Screw ND330-10 M10 4
278A Cylinder Guide, Unloader (A) CS27800-2520CA 2520LSC 1
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Compound 2-stage Screw Compressor 2520**C 7.2 Parts Configuration Table
7-21
P/N Part Name Code No. Remarks Qty
278B Cylinder Guide, Unloader (B) CS27800-2520LMS 2520*MC, 2520*LC 1
(*LC/*MC)
278B Cylinder Guide, Unloader (B) CS27800-2520S 2520*SC 1 (*SC))
279 O-ring PA12-130 JIS B 2401 G130 1
432-1 O-ring PA12-130 JIS B 2401 G130 4
432-2 O-ring (Old JIS W 1516 G22) PA62-022 AS568A-244 4
433-1 O-ring PA12-130 JISB2401 1A G130 4
433-2 O-ring (Old JIS W 1516 G22) PA62-022 AS568A-244 4
528 Sleeve, Oil Seal CS52800-250VD 250V** 1
528 Sleeve with O-ring, Oil Seal CS52809-250VD 250V** 1
529 Set Screw NA83606-008 M6×8 2
605-1 Plug NF06-020 R3/4 1
605-2 Plug NF06-025 R 1" 1
607 Plug NF06-008 R1/4 2
744 O-ring PA12-070 JIS B 2401 G70 1
The sizes of O-ring No.432-2 and No.432-2 have been changed to G130 from G135 in October 2012
as a design change.
 The Code No. of the O-ring is the one assigned to NBR which is standard
material. When the material of the O-ring is other than NBR, a different Code No.
is used for each material.
If you are using O-rings made from other than the standard material, please
contact Mayekawa when placing an order.
 The SLC and SMC models are excluded from the above tables. If you need any
relevant information, please contact our sales offices or service centers.
2201M2JE-HO-C7-N_2015.05.
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Compound 2-stage Screw Compressor 2520**C 7.3 Tightening Torques for Bolts and Nuts
7-22
7.3 Tightening Torques for Bolts and Nuts
Table 7-2 List of Tightening Torques
 Hexagon Socket Head Cap Screw
P/N What is Tightened
Tightening Torque
Qty. Size
N·m kgf·cm
2-1 Rotor Casing (1), Suction Cover (1) and
Bearing Head (1) 450 4500 44 M20×60
2-2 Rotor Casing (2), Suction Cover (2),
Bearing Head (2) 240 2400 50 M16×50
18-1 Bearing Cover and Bearing Head (1) 240 2400 20 M16×50
18-2 Suction Cover (1) and Bearing Head (2) 450 4500 33 M20×60
24 Balance Piston Cover and Suction Cover (2) 240 2400 18 M16×50
53 Seal Cover and Bearing Cover 90 900 8 M12×30
58-1 For Securing Unloader Slide Valve 90 900 4 M12×40
58-2 For Securing Unloader Slide Valve 50 500 4 M10×30
61-1 Unloader Cylinder (1) and Bearing Cover 240 2400 9 M16×140
61-2 Unloader Cylinder (2) and Balance Piston Cover 90 900 9 M12×90
76 Unloader Cover (1), (2) and
Unloader Cylinder (1), (2) 50 500 16 M10×25
81 Bearing Gland 10 100 6 M6×15
162 Push Rod, Unloader Slide Valve (1) 90 900 5 M12×45
166 Oil Injection Pipe Retainer 25 250 4 M8×30
 Hexagon Head Bolt
P/N What is Tightened Tightening Torque
Qty. Size
N·m kgf·cm
45-1 Thrust Bearing Gland (1) 60 600 8 M16×45
45-2 Thrust Bearing Gland (2) 50 500 8 M12×35
94-1 Suction Flange (1) JIS20K 150A 750 7500 12 M24×65
94-2 Suction Flange (intermediate pipe) (2)
JIS20K 150A 240 2400 12 M22×55
97-1 Discharge Flange (intermediate pipe) (1)
JIS20K 150A 240 2400 12 M22×55
97-2 Discharge Flange (2) JIS20K 100A 180 1800 8 M20×55
217-1 Journal Lubricant Supply Flange (1) JIS20K 25A 120 1200 4 M16×45
217-2 Journal Lubricant Supply Flange (2) JIS20K 20A 70 700 4 M12×35
220 Lubricant Injection Flange JIS20K 15A 70 700 4 M12×35
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Compound 2-stage Screw Compressor 2520**C 7.3 Tightening Torques for Bolts and Nuts
7-23
 Lock Nut
P/N What is Tightened
Tightening Torque
(N·m) Qty. Size
Standard Maximum
39-1 Thrust Bearing (1) Note 1 1186 1483 2 AN17
39-2 Thrust Bearing (2) Note 1 522 653 2 AN13
69-1 Unloader Piston (1) 140 - 1 AN08
69-2 Unloader Piston (2) 120 - 1 AN07
71-1 Unloader Slide Valve (1-1) 90 113 1 AN08
71-2 Unloader Slide Valve (1-2) 79 99 1 AN07
160 Gear Coupling Drive Hub Note 1 522 653 1 AN13
Note 1: When tightening a lock nut, if it is difficult to use a torque wrench, manage the tightening
torque of the lock nut controlling the tightening angle range as explained below.
 Tightening Angle Range of Lock Nuts for Rotors
a) After tightening the lock nut by hand, further tighten the lock nut by using a lock nut wrench until the
rotor starts to turn. Take care not to over-tighten.
b) Put a mark on the lock nut at the right side edge of the rotor groove where the stopper tongue of the
lock washer fits in, as shown in Figure 7-16.
c) From this marking position, tighten the lock nut in such a way that rotation can be stopped within the
tightening angle range shown in Table 7-3 (2016**C [39-1], [39-2] and [160]: 30° to 40°(first time
tightening), 20° to 30°(second time tightening). When measuring the angle, use an angle gauge
which is set to the diameter of rotor shaft.
Table 7-3 Tightening Angles Specified
for Lock Nuts of Rotor
Model Angle range
First time tightening 200 (High-stage)
250 (Low-stage) 30° to 40°
Second time
tightening
200 (High-stage)
250 (Low-stage) 20° to 30°
* When tightening lock nut, tightening start position
differs between the first time tightening and the
tightening for the second time or after. Therefore,
angle ranges are specified also for the second
time tightening.
Figure 7-16 Position where mark is put
Photo 139 Angle gauge (example)
Marking
Rotor groove (slot)
where stopper tongue of
the lock washer fits
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Compound 2-stage Screw Compressor 2520**C 7.4 About the O-rings Used
7-24
7.4 About the O-rings Used
7.4.1 List of O-rings Used
Table 7-4 List of O-rings Used
P/N
Location
Designation Installation Part Functional Description (Conventional)
9 Suction Cover (2) Rod, Push (2) P40
35 Sleeve, Balance Piston Same as left P140
49 Seal Retainer Same as left G135
59 Pipe Guide, Oil Injection Pipe, Oil Injection P26
63-1 Cover, Bearing Cylinder, Unloader (1) G150
63-2 Guide, Unloader B Cylinder, Unloader (2) G150
65-1 Unloader Piston (1) Same as left P125
65-2 Unloader Piston (2) Same as left P125
73-1 Rod, Unloader Push (1) Unloader Piston (1) G35
73-2 Rod, Unloader Push (2) Unloader Piston (2) G30
75 Unloader Cylinder Cover (1), (2) Same as left G135
86 Oil Injection Pipe Same as left G25
89 Stem, Guide Block (1), (2) Same as left P20
163 Unloader Slide Valve (1) Same as left G35
165 Retainer, Oil Injection Pipe Same as left G30
197 Cover, Bearing Rod, Unloader Push (1) P50
279 Balance, Piston Cover Guide, Unloader Cylinder B G130
432-1 Main Bearing (1) Same as left G130
432-2 Main Bearing (2) Same as left AS568A-244
433-1 Side Bearing (1) Same as left G130
433-2 Side Bearing (2) Same as left AS568A-244
744 Sleeve, Oil Seal Same as left G70
■ Designation codes are based on JIS B 2401 except AS568A-244.
■ "Installation Part" refers to a component with groove or tapered portion for installing an O-ring.
7.4.2 O-ring Materials Used for Screw Compressor
Table 7-5 List of O-ring Materials Used for Screw Compressor
(Excluding Mechanical Seal)
Working fluid O-ring Material
Ammonia
NBR
Hydrofluorocarbon (HFC)
CO2 FKM
HNBR
Trifluoromethane (R23)
FKM
Propane
Propylene
Natural gas
City gas
Helium

Mycom 3225 C Parts List

P/N Part Name Code No. Remarks Q’ty.
1-1 Main Rotor Casing (1) CS00100-3225C1S 3225S** 1 (S*C)
1-1 Main Rotor Casing (1) CS00100-3225C1M 3225M* 1 (M*C)
1-1 Main Rotor Casing (1) CS00100-3225C1L 3225L** 1 (L*C)
1-1 Main Rotor Casing (1) CS00100-3225C1LL 3225LL* 1(LL*C)
1-2 Main Rotor Casing (2) CS00100-250S 250S** 1 (*SC)
1-2 Main Rotor Casing (2) CS00100-250M 250M** 1 (*MC)
1-2 Main Rotor Casing (2) CS00100-250L 250L** 1 (*LC)
2-1 Hexagon Socket Head Cap Screw NB35424-080 M24×80 52
2-2 Hexagon Socket Head Cap Screw NB35424-060 M20×60 44
3-1 Alignment Pin NE2025-080 Φ25×80 4
3-2 Alignment Pin NE2016-070 Φ16×70 4
4-1 Eye Bolt NB600-30 M30 2
4-2 Eye Bolt NB600-30 M30 1
5-1 Suction Cover (1) CS00500-3225C1 3225**C 1
5-2 Suction Cover (2) CS00500-3225C2 3225**C 1
6-1 Gasket, Suction Cover (1) CS00600-320N 320*** 1
6-2 Gasket, Suction Cover (2) CS00600-3225CN 3225**C 1
7-1 Eye Bolt NB600-16 M16 2
7-2 Eye Bolt NB600-36 M36 1
8-1 Spring Pin (1) NE3206-018 Φ6×18 2
8-2 Spring Pin (2) NE3206-012 Φ6×12 2
10-1A Plug NF06-020 R3/4 1
10-1B Plug NF06-015 R1/2 1
10-2A Plug NF06-010 R3/8 1
10-2B Plug NF06-032 R1/4 1
10-2C Plug NF06-020 R3/4 1
10-2D Plug NF06-015 R1/2 1
10-2E Plug NF06-015 R1/2 1
10-2F Plug NF06-015 R1/2 1
11-1 Bearing Head (1) CS01100-3225C1 3225**C 1
11-2 Bearing Head (2) CS01100-3225C2 3225**C 1
12-1 Gasket, Bearing Head (1) CS01200-320N 320*** 1
12-2 Gasket, Bearing Head (2) CS01200-250N 250*** 1
13-1 Eye Bolt NB0600-036 M36 2
13-2 Eye Bolt NB0600-012 M12 1
14-1 Spring Pin (1) NE3206-018 Φ6×18 2
14-2 Spring Pin (2) NE3206-012 Φ6×12 2
15-1A Plug NF06-010 R3/8 1
15-1B Plug NF06-032 R1"1/4 1
15-1C Plug NF06-020 R3/4 1
16 Bearing Cover CS01800-3225C 3225**C 1
17-1 Gasket, Bearing Cover (1) CS01700-3225CN 3225**C 1
17-2 Gasket, Bearing Cover (2) CS73300-3225CN 3225**C 1
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Compound 2-stage Screw Compressor 3225**C Parts Configuration Table
7-28
P/N Part Name Code No. Remarks Q’ty.
18-1 Hexagon Socket Head Cap Screw NB35420-070 M20×70 20
18-2 Hexagon Socket Head Cap Screw NB35420-065 M20×65 24
19-1 Alignment Pin NE2013-060 Φ13×60 2
19-2 Alignment Pin NE2016-070 Φ16×70 2
20 Spring Pin NE3203-016 Φ3×16 1
22 Balance Piston Cover CS02200-250 250V** 1
23 Gasket, Balance Piston Cover CS02300-250N 250*** 1
24 Hexagon Socket Head Cap Screw NB35412-030 M12×30 11
25-1 Male Rotor (1)
CS02520-3225***
3225S*C O-profile,
induction hardening
1 (S*C)
26-1 Female Rotor (1)
25-1 Male Rotor (1)
CS02520-3225***
3225M*C O-profile,
induction hardening
1 (M*C)
26-1 Female Rotor (1)
25-1 Male Rotor (1)
CS02520-3225***
3225L*C O-profile,
induction hardening
1 (L*C)
26-1 Female Rotor (1)
25-1 Male Rotor (1)
CS02520-3225***
3225LL* O-profile,
induction hardening
1(LL*C)
26-1 Female Rotor (1)
25-2 Male Rotor (2)
CS02520-3225***
3225*SC O-profile,
induction hardening
1 (*SC)
26-2 Female Rotor (2)
25-2 Male Rotor (2)
CS02520-3225***
3225*MC O-profile,
induction hardening
1 (*MC)
26-2 Female Rotor (2)
25-2 Male Rotor (2)
CS02520-3225***
3225*LC O-profile,
induction hardening
1 (*LC)
26-2 Female Rotor (2)
27-1 Main Bearing (1) O-ring type CS0270-GRT 320*** 2
27-2 Main Bearing (2) O-ring type CS0270-FRT 250*** 2
28-1 Side Bearing (1) O-ring type CS0280-GRT 320*** 2
28-2 Side Bearing (2) O-ring type CS0280-FRT 250*** 2
29-1 Snap Ring (1) C type internal NG11-200 H200 4
29-2 Snap Ring (2) C type internal NG11-160 H160 4
30 Balance Piston CS03000-250 250*** 1
31 Key, Balance Piston CS03100-250 250*** 1
32 Snap Ring C type external NG12-080 S80 1
33 Sleeve, Balance Piston CS03300-250 250*** 1
34 Set Screw NA83608-020 M8×20 2
35 O-ring PA11-150 JIS B 2401 P150 1
36 Spacer CS03600-250 250*** 1
37 Snap Ring C type internal NG11-160 H160 2
38-1 Thrust Bearing (1) CS03800-320 320*** 2
38-2 Thrust Bearing (2) CS03800-250P 250*** PPS 2
39-1 Lock Nut (1) NG31-021 AN21 2
39-2 Lock Nut (2) NG31-017 AN17 2
40-1 Lock Washer (1) NG32-021 AW21 2
40-2 Lock Washer (2) NG32-017 AW17 2
42-1 Spacer, Thrust Bearing Alignment (1) CS04200-B320 320*** 2
42-2 Spacer, Thrust Bearing Alignment (2) CS04200-250 250*** 2
43-1 Thrust Bearing Gland (1) CS04300-320S 320*** 2
43-2 Thrust Bearing Gland (2) CS04300-250S 250*** 2
45-1 Hexagon Head Bolt NB111020-055 M20×55 8
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Compound 2-stage Screw Compressor 3225**C Parts Configuration Table
7-29
P/N Part Name Code No. Remarks Q’ty.
45-2 Hexagon Head Bolt NB111016-045 M16×45 8
46-1 Conical Spring Washer CS04600-320 M20 8
- Lock Washer (1) Set (old, plate type) CS0469-G 320*** 8ps/set -
46-2 Conical Spring Washer CS04600-250 M16 8
- Lock Washer (2) Set (old, plate type) CS0469-F 250*** 8ps/set -
48 Retainer, Oil Seal CS04800-320VDS 320V** 1
49 O-ring PA12-160 JIS B 2401 G160 1
50 Oil Seal CS05010-320VD SA1J 95×120×13 1
51 Seal Cover CS05100-320 320*** 1
52 Gasket, Seal Cover CS05200-320N 320*** 1
53 Hexagon Socket Head Cap Screw NB35416-040 M16×40 8
54-1 Unloader Slide Valve (1-1) (L Port) - 3225S*C 1 (S*C)
54-1 Unloader Slide Valve (1-1) (M Port) - 3225S*C 1 (S*C)
54-1 Unloader Slide Valve (1-1) (L Port) - 3225M*C 1 (M*C)
54-1 Unloader Slide Valve (1-1) (M Port) - 3225M*C 1 (M*C)
54-1 Unloader Slide Valve (1-1) (L Port) - 3225L*C 1 (L*C)
54-1 Unloader Slide Valve (1-1) (M Port) - 3225L*C 1 (L*C)
54-1 Unloader Slide Valve (1-1) (L Port) - 3225LL*C 1(LL*C)
54-1 Unloader Slide Valve (1-1) (M Port) - 3225LL*C 1(LL*C)
54-2 Unloader Slide Valve (1-2) (L Port) - 3225*SC 1 (*SC)
54-2 Unloader Slide Valve (1-2) (M Port) - 3225*SC 1 (*SC)
54-2 Unloader Slide Valve (1-2) (L Port) - 3225*MC 1 (*MC)
54-2 Unloader Slide Valve (1-2) (M Port) - 3225*MC 1 (*MC)
54-2 Unloader Slide Valve (1-2) (L Port) - 3225*LC 1 (*LC)
54-2 Unloader Slide Valve (1-2) (M Port) - 3225*LC 1 (*LC)
55-1 Unloader Slide Valve (2-1) - 320S** 1 (S*C)
55-1 Unloader Slide Valve (2-1) - 320M** 1 (M*C)
55-1 Unloader Slide Valve (2-1) - 320L** 1 (L*C)
55-1 Unloader Slide Valve (2-1) - 320LL* 1(LL*C)
55-2 Unloader Slide Valve (2-2) - 250S** 1 (*SC)
55-2 Unloader Slide Valve (2-2) - 250M** 1 (*MC)
55-2 Unloader Slide Valve (2-2) - 250L** 1 (*LC)
58-1 Hexagon Socket Head Cap Screw NB35416-050 M16×50 4
58-2 Hexagon Socket Head Cap Screw NB35412-040 M12×40 4
59 O-ring PA11-032 JIS B 2401 P32 1
60-1 Unloader Cylinder (1) - 3225S*C 1 (S*C)
60-1 Unloader Cylinder (1) - 3225L*C 1(M*C)(L*C)
60-2 Unloader Cylinder (2) - 250S,250L 1 (*SC)(*LC)
60-2 Unloader Cylinder (2) - 250M 1 (*MC)
61 Hexagon Socket Head Cap Screw NB35416-040 M16×40 2
62-1 Hexagon Socket Head Cap Screw NB35420-070 M20×170 8
62-2 Hexagon Socket Head Cap Screw NB35416-090 M16×90 6
63-1 O-ring PA12-170 JIS B 2401 G170 1
63-2 O-ring PA12-190 JIS B 2401 G190 1
64-1 Unloader Piston (1) CS06400-3225CK 3225**C 1
64-2 Unloader Piston (2) CS06400-250T 250*** 1
65-1 O-ring PA11-140 JIS B 2401 P140 1
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Compound 2-stage Screw Compressor 3225**C Parts Configuration Table
7-30
P/N Part Name Code No. Remarks Q’ty.
65-2 O-ring PA11-155 JIS B 2401 P155 1
66-1 Teflon Cap Seal CS06600-3225 SUNR-BE-140(S4101) 1
66-2 Teflon Cap Seal CS06600-250 SUNR-BE-155(S4101) 1
67-1 Push Rod, Unloader Slide Valve (1) CS06700-3225C 3225S*C 1 (S*C)
67-1 Push Rod, Unloader Slide Valve (1) - 3225L*C,M*C,LL*C 1(M*C)(L*C)
67-2 Push Rod, Unloader Slide Valve (2) - 3225*SC 1 (*SC)
67-2 Push Rod, Unloader Slide Valve (2) - 3225*MC 1 (*MC)
67-2 Push Rod, Unloader Slide Valve (2) - 3225*LC 1 (*LC)
68-1 Guide Pin (1) NE2506-016 Φ6×16 1
68-2 Guide Pin (2) NE2506-012 Φ5×12 1
69-1 Lock Nut (1) NG31-010 AN10 1
69-2 Lock Nut (2) NG31-008 AN08 2
70-1 Lock Washer (1) NG32-010 AW10 1
70-2 Lock Washer (2) NG32-008 AW08 2
71 Lock Nut NG31-012 AN12 1
72 Lock Washer NG32-012 AW12 1
73-1 O-ring PA11-044 JIS B 2401 P44 1
73-2 O-ring PA12-035 JIS B 2401 G35 1
74-1 Unloader Cover (1) CS07400-3225C 3225**C 1
74-2 Unloader Cover (2) CS07400-250S 250*** 1
75-1 O-ring PA12-150 JIS B 2401 G150 1
75-2 O-ring PA12-170 JIS B 2401 G170 1
76-1 Hexagon Socket Head Cap Screw NB35412-035 M12×35 8
76-2 Hexagon Socket Head Cap Screw NB35412-030 M12×30 8
77-1 Indicator Cam (1) - 3225S*C 1 (S*C)
77-1 Indicator Cam (1) - 3225M*C 1 (M*C)
77-1 Indicator Cam (1) CS07700-3225C 3225L*C 1 (L*C)
77-2 Indicator Cam (2) CS07700-250S 250S** 1 (*SC)(*LC)
77-2 Indicator Cam (2) - 250M** 1 (*MC)
78 Ball Bearing CS07800-200 #6000 2
79 Snap Ring C type external NG12-010 S10 2
80 Bearing Gland CS08000-200 200*** 2
81 Hexagon Socket Head Cap Screw NB35406-015 M6×15 6
82 V-ring CS08200-200B VH10 NBR 2
83 Spring CS08300-200 200*** 2
84 Retainer, Indicator Cam Spring CS08400-200 200*** 2
85 Oil Injection Pipe - 3225S*C 1 (S*C)
85 Oil Injection Pipe - 320M** 1 (M*C)
85 Oil Injection Pipe - 320L** 1 (L*C)
86 O-ring PA12-030 JIS B 2401 G30 1
87-1 Guide Block (1)
CS08700-320 320*** 1
88-1 Stem, Guide Block (1)
87-2 Guide Block (2)
CS08700-250 250*** 1
88-2 Stem, Guide Block (2)
89-1 O-ring PA11-024 JIS B 2401 P24 2
89-2 O-ring PA11-020 JIS B 2401 P20 2
91 Shaft Key CS09100-320 320*** 1
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Compound 2-stage Screw Compressor 3225**C Parts Configuration Table
7-31
P/N Part Name Code No. Remarks Q’ty.
92-1 Suction Flange (1) with hole CS71300-350 JIS 20K 350A (14") 1
92-1 Suction Flange (1) without hole CS71300-P350 JIS 20K 350A (14") 1
92-2 Suction Flange (2) with hole CS71300-200 JIS 20K 200A (8") 1
92-2 Suction Flange (2) without hole CS71300-P200 JIS 20K 200A (8") 1
93-1 Gasket, Suction Flange (1) CS71200-350N JIS 20K 350A (14") 1
93-2 Gasket, Suction Flange (2) CS71200-200N JIS 20K 200A (8") 1
94-1 Hexagon Head Bolt NB12030-080P3 M30P3×80 16
94-2 Hexagon Head Bolt NB12022-055 M22×55 12
95-1 Discharge Flange (1) with hole CS71300-200 JIS 20K 200A (8") 1
95-1 Discharge Flange (1) without hole CS71300-P200 JIS 20K 200A (8") 1
95-2 Discharge Flange (2) with hole CS71300-150 JIS 20K 150A (6") 1
95-2 Discharge Flange (2) without hole CS71300-P150 JIS 20K 150A (6") 1
96-1 Gasket, Discharge Flange (1) CS71200-200N JIS 20K 200A 1
96-2 Gasket, Discharge Flange (2) CS71200-150N JIS 20K 150A 1
97-1 Hexagon Head Bolt NB12022-055 M22×55 12
97-2 Hexagon Head Bolt NB12022-055 M22×55 12
100 Mechanical Seal Assembly CS10000-320BE BOS-E1 1
100 Mechanical Seal Assembly CS10002-320EBS BBS-E 1
100 Mechanical Seal Assembly CS10001-320BBS BBS3 1
120-1 Unloader Indicator Assembly (1) CS12000-1612F 1612**C 1
120-2 Unloader Indicator Assembly (2) CS12000-3225 3225C (2) 30-100% 1
125-1 Micro Switch Set (1) CS1259-C 125L** 1
125-2 Micro Switch (2) CS12500-200 200*** Z15GW 2
127-1 Micro Switch Cam (1) CS12700-125F 125L** 0-100% 1
127-2 Micro Switch Cam (2) CS12700-322530 3225*SC/*MC (2) 1
127-2 Micro Switch Cam (2) CS12700-200F 3225*LC (2) 1
129-1 Potentiometer (1) CS1299-J 1612 1k with lead wire 1
129-2 Potentiometer (2) 200-1k CS1299-E10 with lead wire 1
137-1 Indicator Dial (1) CS13700-1612CA 1612**C 1
137-2 Indicator Dial (2) CS13700-3225C 3225*SC/*MC (2) 1
137-2 Indicator Dial (2) CS13700-200 3225*LC (2) 1
202-1 Bevel Gear CS20100-1612C6 1612 ID 6mm 2
150 O-ring PA12-220 JIS B 2401 G220 2
- Gear Coupling Assembly (Current Type) CS1519-M 151+152+153+159 1
- Gear Coupling Assembly (Old Type) CS1519-M
151+152+153+159
+154+155
-
151 Drive Sleeve
CS15100-3225C
3225**C IUS-A-30 1
152 Drive Hub 3225**C IUS-A-30 2
154 Stopper, Drive Sleeve 3225**C IUS-A-30 2
155 Stop Ring - FRS-130 4
157 Key, Driven Hub & Drive Hub CS15700-3225CH 20×12×84 2
159 Set Screw NA83610-025
M10×16 knurled,
with anti-loosening 1
160 Lock Nut NG31-015 AN15 1
161 Lock Washer NG32-015 AW15 1
162 Hexagon Socket Head Cap Screw NB35412-050 M12×50 5
164 Retainer, Oil Injection Pipe CS16400-3225C 3225**C 1
165 O-ring PA11-040 JIS B 2401 P40 1
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Compound 2-stage Screw Compressor 3225**C Parts Configuration Table
7-32
P/N Part Name Code No. Remarks Q’ty.
166-1 Hexagon Socket Head Cap Screw NB35496-015 M6×15 4
166-2 Hexagon Socket Head Cap Screw NB35405-012 M5×12 4
168 Pipe Guide, Oil Injection CS16800-3225C 3225L*C,M*C,S*C 1
168 Pipe Guide, Oil Injection - 3225LL*C 1(LL*C)
197 O-ring PA11-058 JIS B 2401 P58 1
215-1 Flange, Lubricating Oil Supply (1)
with hole CS71300-040MK JIS 20K 40A (1"1/2) 1
215-1 Flange, Lubricating Oil Supply (1)
without hole CS71300-040 JIS 20K 40A (1"1/2) 1
215-2 Flange, Lubrication Oil Supply (2) with
hole CS71300-025MK JIS 20K 25A (1") 1
215-2 Flange, Lubricating Oil Supply (2)
without hole CS71300-025 JIS 20K 25A (1") 1
216-1 Gasket, Lubricating Oil Supply Flange
(1) CS71200-040N JIS 20K 40A 1
216-2 Gasket, Lubricating Oil Supply Flange
(2) CS71200-025N JIS 20K 25A 1
217-1 Hexagon Head Bolt NB12016-045 M16×45 4
217-2 Hexagon Head Bolt NB12016-045 M16×45 4
218 Flange, Injection Oil Supply with hole CS71300-020MK JIS 20K 20A (3/4") 1
218 Flange, Injection Oil Supply without hole CS71300-020 JIS 20K 20A (3/4") 1
219 Gasket, Injection Oil Supply Flange CS71200-020N JIS 20K 20A 1
220 Hexagon Head Bolt NB12012-035 M12×35 4
237-1 Torsional Slip Washer (1) CS23700-320 320*** 2
237-2 Torsional Slip Washer (2) CS23700-250 250*** 2
245- Spring Washer ND330-12 M12 5
250-1 Thrust Washer (1) CS25000-320 320*** 2
250-2 Thrust Washer (2) CS25000-250 250*** 2
267-1 Special Spring Washer for Hexagon
Socket Head Cap Screw ND330-16 M16 4
267-2 Special Spring Washer for Hexagon
Socket Head Cap Screw ND330-12 M12 4
326-1 Gland, O-ring (1) CS32600-3225C 3225**C 1
326-2 Gland, O-ring (2) CS32600-3225C2 3225**C 1
328 O-ring PA11-046 JIS B 2401 P46 1
329 Spring Pin NE3204-010 Φ4×10 1
350 Flange, Balance Piston Oil Return
Piping with hole CS71300-020MK JIS 20K 20A (3/4") 1
350 Flange, Balance Piston Oil Return
Piping without hole CS71300-020 JIS 20K 20A (3/4") 1
351 Gasket, Balance Piston CS71200-020N JIS 20K 20A 1
352 Hexagon Head Bolt NB12012-035 M12×35 4
353 Flange, Bearing Cover Oil Return Piping
with hole CS71300-032MK JIS 20K 32A( 1-1/4”) 1
353 Flange, Bearing Cover Oil Return Piping
without hole CS71300-032 JIS 20K 32A (1-1/4”) 1
354 Gasket, Bearing Cover CS71200-032N JIS 20K 32A 1
355 Hexagon Head Bolt NB12016-045 M16×45 4
356 Flange, Rotor Casing Oil Return Piping
with hole CS71300-032MK JIS 20K 32A (1-1/4”) 1
356 Flange, Rotor Casing Oil Return Piping
without hole CS71300-032 JIS 20K 32A (1-1/4”) 1
357 Gasket, Rotor Casing CS71200-032N JIS 20K 32A 1
358 Hexagon Head Bolt NB12016-045 M16×45 4
420 Spacer, Unload Position (High-stage) CS42000-250S30 250S** 30 % load 1 (*SC)
420 Spacer, Unload Position (High-stage) CS42000-250M30 250M** 30 % load 1 (*MC)
2201MYJE-MY-C8-N_2015.04.
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Compound 2-stage Screw Compressor 3225**C Parts Configuration Table
7-33
P/N Part Name Code No. Remarks Q’ty.
421 O-ring PA11-046 JIS B 2401 P46 2(*SC)(*MC)
423 Spacer, Unload Position (Low-stage) CS42300-3225MSC 3225M*C 1 (M*C)
431 O-ring PA11-140 JIS B 2401 P140 1 (M*C)
432-1 O-ring PA12-165 JIS B 2401 G165 4
432-2 O-ring PA12-130 JIS B 2401 G130 4
433-1 O-ring PA12-165 JIS B 2401 G165 4
433-2 O-ring PA12-130 JIS B 2401 G130 4
528 Sleeve with O-ring, Oil Seal CS52809-320VD 320V** 1
529 Set Screw NA83606-008 M6×8 2
605 Plug NF06-025 R 1" 1
607-A Plug NF06-008 R 1/4 1
607-B Plug NF06-008 R 1/4 1
744 O-ring PA12-090 JIS B 2401 G90 1
- O-ring set CS7109-0M NBR 3225C -
- Gasket set CS7118-0M 3225C -
The sizes of O-ring No.432-2 and No.432-2 have been changed to G130 from G135 in October 2012
as a design change.
 The part code of the O-ring is the one assigned to NBR which is standard material.
When the material of the O-ring is other than NBR, a different part code is used for
each material.
If you are using O-rings made from other than the standard material, please contact
MAYEKAWA when placing an order.
2201MYJE-MY-C8-N_2015.04.
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Compound 2-stage Screw Compressor 3225**C Tightening Torques for Bolts and Nuts
7-34
7.3 Tightening Torques for Bolts and Nuts
Table 7-2 List of Tightening Torques
 Hexagon socket head cap screw
P/N What is tightened
Torque
Q’ty. Size
N·m kgf·cm
2-1 Main Rotor Casing (1) to
Suction Cover (1) and Bearing Head (1) 750 7500 52 M24×80
2-2 Main Rotor Casing (2) to
Suction Cover (2) and Bearing Head (2) 750 7500 44 M24×60
18-1 Bearing Cover to Bearing Head (1) 450 4500 20 M20×70
18-2 Suction Cover (1) to Bearing Head (2) 450 4500 24 M20×65
24 Balance Piston Cover to Suction Cover (2) 90 900 11 M12×30
53 Seal Cover to Bearing Cover 240 2400 8 M16×40
58-1 For Securing Unloader Slide Valve 240 2400 4 M16×50
58-2 For Securing Unloader Slide Valve 90 900 4 M12×40
61 Unloader Cylinder (2) to Balance Piston Cover 240 2400 2 M16×40
62-1 Unloader Cylinder (1) to
Bearing Cover and Bearing Head (1) 450 4500 8 M20×170
62-2 Unloader Cylinder (2) to
Balance Piston Cover and Suction Cover (2) 240 2400 6 M16×90
76-1 Unloader Cover (1) to Unloader Cylinder (1) 90 900 8 M12×35
76-2 Unloader Cover (2) to Unloader Cylinder (2) 90 900 8 M12×30
81 Bearing Gland (1) (2) to Unloader Cover 10 100 6 M6×15
162 Push Rod, Unloader Slide Valve (1) 90 900 5 M12×50
166-1 O-ring Gland (1) to Bearing Head (1) 10 100 4 M6×15
166-2 O-ring Gland (1) to Suction Cover (2) 6 60 4 M5×12
 Hexagon Head Bolt
P/N What is tightened Torque Q’ty. Size
N·m kgf·cm
45-1 Thrust Bearing Gland (1) 120 1200 8 M20×55
45-2 Thrust Bearing Gland (2) 60 600 8 M16×45
94-1 Suction Flange (1) JIS 20K 350A 200 2000 12 M30×80
94-2 Suction Flange (intermediate pipe) (2) JIS 20K 200A 140 1400 12 M22×55
97-1 Discharge Flange (intermediate pipe) (1) JIS 20K 200A 140 1400 12 M22×55
97-2 Discharge Flange (2) JIS 20K 150A 160 1600 8 M22×55
217-1 Journal Lubrication Flange (1) JIS 20K 40A 40 400 4 M16X45
217-2 Journal Lubrication Flange (1) JIS 20K 250A 40 400 4 M16X45
220 Oil Injection Flange JIS 20K 20A 40 400 4 M12X35
352 Oil Return Outlet Flange on Suction Cover (2)
JIS 20K 20A 40 400 4 M12X35
355 Oil Return Outlet Flange on Bearing Cover JIS 20K 32A 40 400 4 M16X45
358 Oil Return Inlet Flange on Main Rotor Casing (1)
JIS 20K 32A 40 400 4 M16X45
2201MYJE-MY-C8-N_2015.04.
Chapter 7 Related Documents
Compound 2-stage Screw Compressor 3225**C Tightening Torques for Bolts and Nuts
7-35
 Lock Nut
P/N What is tightened
Tightening torque (N·m)
Q’ty. Size
Standard Maximum
39-1 Thrust Bearing (1) Note 1 2259 2824 2 AN21
39-2 Thrust Bearing (2) Note 1 1186 1483 2 AN17
69-1 Unloader Piston (1) 180 - 1 AN10
69-2 Unloader Piston (2) 140 - 1 AN08
71-1 Unloader Slide Valve (1-1) 408 510 1 AN12
160 Gear Coupling Drive Hub Note 1 810 1012 1 AN15
Note 1: When tightening a lock nut, if it is difficult to use a torque wrench, manage the tightening
torque of the lock nut controlling the tightening angle range as explained below.
 Tightening Angle Range of Lock Nuts for Rotors
a) After tightening the lock nut by hand, further tighten the lock nut by using a lock nut wrench until the
rotor starts to turn. Take care not to over-tighten.
b) Put a mark on the lock nut at the right side edge of the rotor groove where the stopper tongue of the
lock washer fits in, as shown in Figure 7-9.
c) From this marking position, tighten the lock nut in such a way that rotation can be stopped within the
tightening angle range shown in Table 7-3.
When measuring the angle, use an angle gauge which is set to the diameter of rotor shaft.
Table 7-3 Tightening Angles Specified
for Lock Nuts of Rotor
* When tightening lock nut, tightening start position
differs between the first time tightening and the
tightening for the second time or after. Therefore,
angle ranges are specified also for the second
time tightening.
Figure 7-9 Position where mark is put
Photo 126 Angle gauge (example)
Model Angle range
First time
tightening
250 (High-stage) 30°to 40°
320 (Low-stage) 25°to 35°
Second time
tightening
250 (High-stage) 20°to 30°
Marking 320 (Low-stage) 15°to 25° Rotor groove (slot)
where stopper tongue of
the lock washer fits
2201MYJE-MY-C8-N_2015.04.
Chapter 7 Related Documents
Compound 2-stage Screw Compressor 3225**C About the O-rings Used
7-36
7.4 About the O-rings Used
7.4.1 List of O-rings Used
Table 7-3 List of O-rings Used
P/N
Location JIS B 2401
attached place description in functional aspect Size
35 Sleeve, Balance Piston same as left P150
49 Seal Retainer same as left G160
59 Oil Injection Pipe Guide Oil Injection Pipe P32
63-1 Bearing Cover Unloader Cylinder (1) G170
63-2 Balance Piston Cover Unloader Cylinder (2) G190
65-1 Unloader Piston (1) same as left P140
65-2 Unloader Piston (2) same as left P155
73-1 Unloader Push Rod (1) Unloader Piston (1) P44
73-2 Unloader Push Rod (2) Unloader Piston (2) G35
75-1 Unloader Cover (1) same as left G150
75-2 Unloader Cover (2) same as left G170
86 Oil Injection Pipe same as left G30
89-1 Guide block Stem (1) same as left P24
89-2 Guide block Stem (2) same as left P20
150 Thrust Bearing Gland (1) same as left G220
165 Oil Injection Pipe Gland same as left P40
197 Bearing Head (1) Unloader Push Rod (1) P58
328 Suction Cover (2) Unloader Push Rod (2) P46
421 Unload Spacer (2) same as left P46
431 Unload Spacer (1) same as left P140
432-1 Main Bearing (1) same as left G165
432-2 Main Bearing (2) same as left G130
433-1 Side Bearing (1) same as left G165
433-2 Side Bearing (2) same as left G130
744 Oil Seal Sleeve same as left G90
■ Attached place means parts which they have grooves or with taper cutting for attaching O-ring.
7.4.2 O-ring Materials Used for Screw Compressor
Table 7-4 List of O-ring Materials Used for Screw Compressor
(excluding mechanical seal)
Working fluid O-ring material
Ammonia
Hydrofluorocarbon (HFC) NBR
CO2 FKM
HNBR
Trifluoromethane (R23)
FKM
Propane
Propylene
Natural gas
City gas
Helium

Mycom 4032 C Parts List

No. Part Name Code No. Remarks Q’ty.
1-1 Main Rotor Casing (1) CS00100-400S 400S** 1(S*C)
1-1 Main Rotor Casing (1) - 400M** 1(M*C)
1-1 Main Rotor Casing (1) - 400L** 1(L*C)
1-1 Main Rotor Casing (1) - 400LL* 1 (LL*C)
1-1 Main Rotor Casing (1) - 400XL* 1(XL*C)
1-2 Main Rotor Casing (2) CS00100-320S 4032*SC 1(*SC)
1-2 Main Rotor Casing (2) CS00100-320M 4032*MC 1(*MC)
1-2 Main Rotor Casing (2) CS00100-320L 4032*LC 1(*LC)
1-2 Main Rotor Casing (2) CS00100-320LL 4032*LLC 1(*LLC)
2-1 Hexagon Socket Head Cap Screw NB35930-110
M30×110
with captive washer 60
2-2 Hexagon Socket Head Cap Screw NB35424-08D M24×80 52
3-1 Alignment Pin NE2330-100A Φ30×100 4
3-2 Alignment Pin NE2325-080A Φ25×80 4
4-1 Eye Bolt NB600-42 M42 2
4-2 Eye Bolt NB600-30 M30 2
5-1 Suction Cover (1) CS00501-4032C1 4032**C 1
5-2 Suction Cover (2) CS00501-4032C2 4032**C 1
6-1 Gasket, Suction Cover (1) CS00600-4032CN 4032**C 1
6-2 Gasket, Suction Cover (2) CS00600-320N 320*** 1
7-1 Eye Bolt NB600-42 M42 2
7-2 Eye Bolt NB600-36 M36 1
8-1 Spring Pin (1) NE3208-025 Φ8×25 2
8-2 Spring Pin (2) NE3206-018 Φ6×18 2
9 O-ring PA12-095 JIS B 2401 G95 1
10-1 Plug NF021-NPT04 NPT1/2 1
10-2A Plug NF02 ｰNPT06 NPT3/4 1
10-2B Plug NF02 ｰNPT06 NPT3/4 1
10-2C Plug NF021NPT04 NPT1/2 1
11-1 Bearing Head (1) CS01100-4032C1 4032**C 1
11-2 Bearing Head (2) CS01100-4032C2 4032**C 1
12-1 Gasket, Bearing Head (1) CS01200-400 400V** 1
12-2 Gasket, Bearing Head (2) CS01200-320N 320*** 1
13-1 Eye Bolt NB600-64 M64 2
13-2 Eye Bolt NB600-64 M64 2
14-1 Spring Pin (1) NE3208-025 Φ8×25 2
14-2 Spring Pin (2) NE3206-018 Φ6×18 2
15-1A Plug NF021-NPT06 NPT3/4 1
15-1B Plug NF021-NPT10 NPT1 1/4 1
15-2A Plug NF06-020 R3/4 1
15-2B NF021-NPT06 NPT3/4 2
16 Bearing Cover CS01600-4032C 4032**C 1
17-1 Gasket, Bearing Cover (1) CS01700-400 400V** 1
17-2 Gasket, Bearing Cover (2) CS01700-4032CN 4032**C 1
2200Q4JE-MY-C9-N_2015.04.
Chapter 7 Related Documents
Compound 2-stage Screw Compressor 4032**C Parts Configuration Table
7-7
No. Part Name Code No. Remarks Q’ty.
18-1 Hexagon Socket Head Cap Screw NB35930-100
M30×100
with captive washer 22
18-2 Hexagon Socket Head Cap Screw NB35424-075 M24×75 22
18-3 Hexagon Socket Head Cap Screw NB35424-095 M24×95 4
19-1 Alignment Pin with Groove and Hole NE2320-100A Φ20×100 2
19-2 Alignment Pin with Female Tread NE2325-070A Φ25×70 2
21-A Plug NF021-NPT02 NPT1/4 4
21-B Plug NF021-NPT03 NPT3/8 1
21-C Plug NF021-NPT04 NPT1/2 1
22 Balance Piston Cover CS02200-320 320*** 1
23 Gasket, Balance Piston Cover CS02300-320N 320*** 1
24 Hexagon Socket Head Cap Screw NB35416-045 M16×45 11
25-1 Male Rotor (1)
- 4032S*C 1(S*C)
26-1 Female Rotor (1)
25-1 Male Rotor (1)
- 4032M*C 1(M*C)
26-1 Female Rotor (1)
25-1 Male Rotor (1)
- 4032L*C 1(L*C)
26-1 Female Rotor (1)
25-1 Male Rotor (1)
- 4032LL*C 1 (LL*C)
26-1 Female Rotor (1)
25-1 Male Rotor (1)
- 4032XL*C 1(XL*C)
26-1 Female Rotor (1)
25-2 Male Rotor (2)
- 4032*SC 1(*SC)
26-2 Female Rotor (2)
25-2 Male Rotor (2)
- 4032*MC 1(*MC)
26-2 Female Rotor (2)
25-2 Male Rotor (2)
- 4032*LC 1(*LC)
26-2 Female Rotor (2)
25-2 Male Rotor (2)
- 4032*LLC 1(*LLC)
26-2 Female Rotor (2)
27-1 Main Bearing (1) O-ring type CS0270-4032N No.27-1 + No.432-1 2
27-2 Main Bearing (2) O-ring type CS0270-GRT No.27-2 + No.432-2 2
28-1 Side Bearing (1) O-ring type CS02800-4032N No.28-1 + No.438-1 2
28-2 Side Bearing (2) O-ring type CS0280-GRT No.28-2 + No.438-2 2
29-1 Snap Ring (1) C type Internal NG11-250 JIS B 2804 H250 4
29-2 Snap Ring (2) C type Internal NG11-200 JIS B 2804 H200 4
30 Balance Piston CS03000-320 320*** 1
31 Key, Balance Piston CS03100-320 320*** 1
32 Snap Ring C type External NG12-100 JIS B 2804 S100 1
33 Sleeve, Balance Piston CS03300-320 320*** 1
34 Set Screw NE3206-014 Φ6×14 1
35 O-ring PA12-190 JIS B 2401 G190 1
36 Spacer CS03600-320 320*** 1
37 Snap Ring C type Internal NG11-200 JIS B 2804 H200 2
38-1A Thrust Bearing (1) TPTB CS03800-T400M
400*** for M rotor
Daido
1
38-1B Thrust Bearing (1) TPTB CS03800-T400F
400*** for F rotor
Daido
1
38-2 Thrust Bearing (2) Ball type CS03800-320 320** Cast Retainer 2
2200Q4JE-MY-C9-N_2015.04.
Chapter 7 Related Documents
Compound 2-stage Screw Compressor 4032**C Parts Configuration Table
7-8
No. Part Name Code No. Remarks Q’ty.
38-2 Thrust Bearing (2) TPTB CS03800-T00320 320*** 2
39-1 Lock Nut (1) NG311-028 AN28 2
39-2 Lock Nut (2) NG311-021 AN21 2
40-1 Lock Washer (1) NG32-028X AW28X 2
40-2 Lock Washer (2) NG32-021 AW21 2
42-1 Spacer, Thrust Bearing Alignment (1) CS04200-B400 400*** Booster 2
42-2 Spacer, Thrust Bearing Alignment (2) CS04200-320 320*** 2
42-2 Spacer, Thrust Bearing Alignment (2) CS04200-320TP 320*** for TPTB 2
43-1A Thrust Bearing Gland (1A) CS04300-400M 400*** for M Rotor 1
43-1B Thrust Bearing Gland (1B) CS04300-400F 400*** for F Rotor 1
43-2 Thrust Bearing Gland (2) CS04300-320 320*** 2
43-2 Thrust Bearing Gland (2) CS04300-320TP 320*** for TPTB 2
45-1 Hexagon Socket Head Cap Screw NB35420-075 M20×75 12
45-2 Hexagon Head Bolt NB111020-055 M20×55 8
46-1
Spring Washer
for Hex Socket Head Cap Screw ND330-20 400*** M20 12
46-2 Conical Spring Washer ND150-020 320*** M20 8
51 Seal Cover CS05100-400 400*** 1
53 Hexagon Socket Head Cap Screw NB35416-040 M16×40 8
54-1 Unloader Slide Valve (1-1) (L Port) CS05400-4032S1L 4032S*C 1(S*C)
54-1 Unloader Slide Valve (1-1) (M Port) CS05400-4032S1M 4032S*C 1(S*C)
54-1 Unloader Slide Valve (1-1) (L Port) CS05400-4032M1L 4032M*C 1(M*C)
54-1 Unloader Slide Valve (1-1) (M Port) CS05400-4032M1M 4032M*C 1(M*C)
54-1 Unloader Slide Valve (1-1) (L Port) CS05400-4032L1L 4032L*C 1(L*C)
54-1 Unloader Slide Valve (1-1) (M Port) CS05400-4032L1M 4032L*C 1(L*C)
54-1 Unloader Slide Valve (1-1) (L Port) CS05400-4032LL1L 4032LL*C 1 (LL*C)
54-1 Unloader Slide Valve (1-1) (M Port) CS05400-4032LL1M 4032LL*C 1 (LL*C)
54-1 Unloader Slide Valve (1-1) (L Port) CS05400-4032XL1L 4032XL*C 1(XLLLC)
54-1 Unloader Slide Valve (1-1) (M Port) CS05400-403X2L1M 4032XL*C 1(XLLLC)
54-2 Unloader Slide Valve (1-2) (L Port) - 4032*SC 1(*SC)
54-2 Unloader Slide Valve (1-2) (M Port) - 4032*SC 1(*SC)
54-2 Unloader Slide Valve (1-2) (L Port) - 4032*MC 1(*MC)
54-2 Unloader Slide Valve (1-2) (M Port) - 4032*MC 1(*MC)
54-2 Unloader Slide Valve (1-2) (L Port) - 4032*LC 1(*LC)
54-2 Unloader Slide Valve (1-2) (M Port) - 4032*LC 1(*LC)
54-2 Unloader Slide Valve (1-2) (L Port) - 4032*LLC 1(*LLC)
54-2 Unloader Slide Valve (1-2) (M Port) - 4032*LLC 1(*LLC)
55 Unloader Slide Valve (2-2) - 320S** 1(S*C)
55 Unloader Slide Valve (2-2) - 320M** 1(M*C)
55 Unloader Slide Valve (2-2) - 320L** 1(L*C)
55 Unloader Slide Valve (2-2) - 320LL* 1 (LL*C)
58-1 Hexagon Socket Head Cap Screw NB35414-055 M14×55 8
58-2 Hexagon Socket Head Cap Screw NB35416-050 M16×50 4
60-1 Unloader Cylinder (1) CS06000-400S 4032S*C 1(S*C)
60-1 Unloader Cylinder (1) CS06000-400M 4032M*C 1(M/L/LL)
(XL*C)
60-2 Unloader Cylinder (2) CS06000-320S 320S** 1(*SC)
60-2 Unloader Cylinder (2) CS06000-320M 320M** 1(*MC)
2200Q4JE-MY-C9-N_2015.04.
Chapter 7 Related Documents
Compound 2-stage Screw Compressor 4032**C Parts Configuration Table
7-9
No. Part Name Code No. Remarks Q’ty.
60-2 Unloader Cylinder (2) CS06000-320L 320L** 1(*LC)
60-2 Unloader Cylinder (2) CS06000-320LL 320LL* 1(*LLC)
61 Hexagon Socket Head Cap Screw NB35420-050 M20×50 2
62 Hexagon Socket Head Cap Screw NB35420-110 M20×110 6
63-1 O-ring PA12-250 JIS B 2401 G250 1
63-2 O-ring PA12-240 JIS B 2401 G240 1
64-1 Unloader Piston (1) CS06400-400 400V** 1
64-2 Unloader Piston (2) CS06400-320S 320*** 1
65-1 O-ring PA11-215 JIS B 2401 P215 1
65-2 O-ring PA11-200 JIS B 2401 P200 1
66-1 Teflon Cap Seal CS06600-400 CAP-3BE-215 1
66-2 Teflon Cap Seal CS06600-320 CAP-3BE-200 1
67-1 Unloader Push Rod (1) CS06700-4032S 4032S*C 1(*SC)
67-1 Unloader Push Rod (1) CS06700-4032M 4032M*C 1(*MC)
67-1 Unloader Push Rod (1) CS06700-4032L 4032L*C 1(*L/*LLC)
67-2 Unloader Push Rod (2) CS06700-320SU 320S** 1(*SC)
67-2 Unloader Push Rod (2) CS06700-320MU 320M** 1(*MC)
67-2 Unloader Push Rod (2) CS06700-320LU 320L** 1(*LC)
68-1 Guide Pin (1) NE2506-016 Φ6×16 1
68-2 Guide Pin (2) NE2506-016 Φ6×16 1
69-1 Lock Nut (1) NG31-010 AN10 2
69-2 Lock Nut (2) NG31-010 AN10 1
70-1 Lock Washer (1) NG32-010 AW10 1
70-2 Lock Washer (2) NG32-010 AW10 1
71 Lock Nut NG31-012 AN12 1
72 Lock Washer NG32-012 AW12 1
73-1 O-ring PA12-045 JIS B 2401 G45 1
73-2 O-ring PA11-044 JIS B 2401 P44 1
74-1 Unloader Cover (1) CS07400-400 4032**C 1
74-2 Unloader Cover (2) CS07400-320 320*** 1
75-1 O-ring PA12-220 JIS B 2401 G220 1
75-2 O-ring PA12-210 JIS B 2401 G210 1
76-1 Hexagon Socket Head Cap Screw NB35422-070 M22×70 8
76-2 Hexagon Socket Head Cap Screw NB35416-040 M16×40 8
77-1 Indicator Cam (1) CS07700-400S 400VS* 1(S*C)
77-1 Indicator Cam (1) CS07700-400M 400VM* 1(M*C)
77-1 Indicator Cam (1) CS07700-400VL 400VL* 1(L*/LL*C)
77-2 Indicator Cam (2) CS07700-320S 320S** 1(*SC)
77-2 Indicator Cam (2) CS07700-320M 320M** 1(*MC)
77-2 Indicator Cam (2) CS07700-320L 320L** 1(*LC)
77-2 Indicator Cam (2) CS07700-320LL 320LL** 1(*LLC)
78-1 Ball Bearing CS07800-400 #6302 1
78-2 Ball Bearing CS07800-200 #6000 1
79-1 Snap Ring C type External NG12-015 JIS B 2804 S15 1
79-1 Snap Ring C type External NG12-010 JIS B 2804 S10 1
80-1 Bearing Gland (1) CS08000-400 400*** 1
80-2 Bearing Gland (2) CS08000-200 200*** 1
2200Q4JE-MY-C9-N_2015.04.
Chapter 7 Related Documents
Compound 2-stage Screw Compressor 4032**C Parts Configuration Table
7-10
No. Part Name Code No. Remarks Q’ty.
81-1 Hexagon Socket Head Cap Screw NB35406-015 M6×15 3
81-2 Hexagon Socket Head Cap Screw NB35406-015 M6×15 3
82-1 V-ring CS08200-200B VH10 NBR 1
82-2 V-ring CS08200-200B VH10 NBR 1
83-1 Spring CS08300-200 200*** 1
83-2 Spring CS08300-200 200*** 1
84-1 Retainer, Indicator Cam Spring CS08400-400 400*** 1
84-2 Retainer, Indicator Cam Spring CS08400-200 200*** 1
87-2 Guide Block (2)
CS08700-320 320*** 1
88-2 Stem, Guide Block (2)
89-2 O-ring PA11-024 JIS B 2401 P24 2
91 Shaft Key CS09100-400 400*** 1
92-1 Suction Flange (1) with hole CZA01-300C16B ANSI #300 16" 1
92-2 Suction Flange (2) with hole CZA01-300C12B ANSI #300 12" 1
93-1 Gasket, Suction Flange (1) PL300-400 ANSI #300 16" 1
93-2 Gasket, Suction Flange (2) PL300-300 ANSI #300 12" 1
94-1 Stud Bolt NBU611/4-7UNC
1-1/4"
-7UNC×165mm
20
- Hexagonal Nut, Stud Bolt NCU1511/4-7UNC 1-1/4" -7UC 20
94-2 Stud Bolt NBU611/8-7UNC
1-1/8"
-7UNC×150mm
16
- Hexagonal Nut, Stud Bolt NCU1511/8-7UNC 1 1/8" -7UC 16
95-1 Discharge Flange (1) with hole CZA01-300C12B ANSI #300 12" 1
95-2 Discharge Flange (2) with hole CZA01-300C08B ANSI #300 8" 1
96-1 Gasket, Discharge Flange (1) PL300-300 ANSI #300 12" 1
96-2 Gasket, Discharge Flange (2) PL300-200 ANSI #300 8" 1
97-1 Stud Bolt NBU611/8-7UNC
1-1/8"
-7UNC×150mm
16
97-2 Stud Bolt NBU607/8-9UNC 7/8" -9UNC×120mm 12
100 Mechanical Seal Assembly CS10000-400 400*** BOD 1
100 Mechanical Seal Assembly CS10001-400BBDR 400*** BBDⅡ FKM 1
100 Mechanical Seal Assembly CS1002-400EBD 400*** BBD-E 1
120-1 Unloader Indicator Assembly (1) CS12000-200F 200** 0-100% 1
120-2 Unloader Indicator Assembly (2) CS12000-3225 3225C (2) 30-100% 1
125 Micro-Switch CS12500-200 200*** Z15GW 4
127-1 Micro-Switch Cam (1) CS12700-200F 200*** 0-100% 1
127-2 Micro-Switch Cam (2) CS12700-322530 3225C (2) 30-100% 1
128 Hexagon Socket Head Set Screw NA83604-005 M4×5 2
129 Potentiometer 200-1 k CS1299-E10 with lead wire 2
137-1 Indicator Dial (1) CS13700-200 200*** 1
137-2 Indicator Dial (2) CS13700-3225C 3225C (2) 30-100% 1
150-1 O-ring PA12-290 JIS B 2401 G290 2
150-2 O-ring PA12-220 JIS B 2401 G220 2
151 Drive Sleeve
CS15100-4032CN
4032**C 1
152 Drive Hub 4032**C 2
157 Key, Driven Hub & Drive Hub CS15700-4032CH
24×16×111
single round 2
159 Set Screw NA83610-016 M10×16 2
163 O-ring PA12-065 JIS B 2401 G65 1
2200Q4JE-MY-C9-N_2015.04.
Chapter 7 Related Documents
Compound 2-stage Screw Compressor 4032**C Parts Configuration Table
7-11
No. Part Name Code No. Remarks Q’ty.
166-1 Hexagon Socket Head Cap Screw NB35412-025 M12×25 4
166-2 Hexagon Socket Head Cap Screw NB35405-010 M5×12 4
187-1 Snap Ring C type External NG12-095 JIS B 2804 S95 1
187-2 Snap Ring C type External NG12-095 JIS B 2804 S95 1
200-1 Unloader Indicator Fixture Assembly CS20000-400 400V** 1
201 Bevel Gear (1) CS20100-1612C9 1612LSC(Φ9) 1
202 Bevel Gear (2) CS20100-1612C6 1612LSC(Φ6) 1
206 Glass Gland, Unloader Indicator CS20600-1612 1612LSC 1
208 Shaft, Unloader Indicator CS12200-400 400V** 1
208-A Snap Ring C type External NG12-010 S10 2
208-B Bearing CS16460-200 #6000LL 2
210 Cross-recessed and Pan Head Screw NB35405-015 M5×15 4
212-A Hexagon Socket Head Cap Screw NB35405-030 M8×30 2
212-B Hexagon Socket Head Cap Screw NB35408-095 M8×95 2
212-C Hexagon Socket Head Cap Screw NB35408-020 M8×20 4
212-D Spring Washer ND320-008 M8 8
215-1a Flange, Lubricating Oil Supply (1) to
Main Journal CZA01-300C02B ANSI #300 2" 1
215-1b Flange, Lubricating Oil Supply (1) to
Side Journal CZA01-300C01B ANSI #300 1" 1
215-1c Flange, Lubricating Oil Supply to TPTB CZA01-300C02B ANSI #300 2" 1
215-2 Flange, Lubrication Oil Supply (2) to
Journal CZA01-300C02B ANSI #300 2" 1
215-2 Flange, Lubricating Oil Supply (2) to
TPTB CZA01-300C01B ANSI #300 1" 1
216-1a Flange Gasket, Lubricating Oil Supply
(1) to Main Journal PL300-050 ANSI #300 2" 1
216-1b Flange Gasket, Lubricating Oil Supply
(1) to Side Journal PL300-025 ANSI #300 1" 1
216-1c Flange Gasket, Lubricating Oil Supply to
TPTB PL300-050 ANSI #300 2" 1
216-2 Flange Gasket, Lubrication Oil Supply
(2) to Journal PL300-050 ANSI #300 2" 1
216-2 Flange Gasket, Lubricating Oil Supply
(2) to TPTB PL300-025 ANSI #300 1" 1
217-1a Stud Bolt NBU605/8-11UNC 5/8 " -11UNC×75mm 8
217-1b Stud Bolt NBU605/8-11UNC 5/8 " -11UNC×75mm 4
217-1c Stud Bolt NBU605/8-11UNC 5/8 " -11UNC×75mm 8
217-2 Stud Bolt NBU605/8-11UNC 5/8 " -11UNC×75mm 8
217-2 Stud Bolt NBU605/8-11UNC 5/8 " -11UNC×75mm 4
- Hexagonal Nut NCU1505/8-11UNC 5/8 " -11UNC 32
218 Flange, Injection Oil Supply CZA01-300C0204B ANSI #300 2-1/2" 1
219 Flange Gasket, Injection Oil Supply PL300-065 ANSI #300 2-1/2" 1
220 Stud Bolt NBU603/4-10UNC 3/4" -10UNC×90mm 8
237-1 Torsional Slip Washer (1) CS23700-400 400*** 2
237-2 Torsional Slip Washer (2) CS23700-320 320*** 2
245
Special Spring Washer for Hexagon
Socket Head Cap Screw ND330-14 No.3 14、400V** 8
246-1 Guide, Unloader Slide Valve CS24600-400 400*** 1
247-1 Hexagon Socket Head Cap Screw NB35416-075 M16×75 8
250-1 Thrust Washer (1) CS25000-400 400*** 2
250-2 Thrust Washer (2) CS25000-320 320*** 2
267 Special Spring Washer for Hexagon
Socket Head Cap Screw ND320-016 M16 4
2200Q4JE-MY-C9-N_2015.04.
Chapter 7 Related Documents
Compound 2-stage Screw Compressor 4032**C Parts Configuration Table
7-12
No. Part Name Code No. Remarks Q’ty.
325 O-ring PA11-070 JIS B 2401 P70 2
326-1 Gland, O-ring (1) CS32600-400 400V** 1
326-2 Gland, O-ring (2) CS32600-320 320*** 1
328 O-ring PA11-058 JIS B 2401 P58 1
346 Shaft Key for TPTB CS34600-400 400*** 2
419 Backup Ring PBP21-070 SUN-2BP-70-T2 4
420 Spacer, Unload Position (30 % load) CS42000-320S30 320S** 1(*SC)
420 Spacer, Unload Position (30 % load) CS42000-320M30 320M** 1(*MC)
420 Spacer, Unload Position (30 % load) CS42000-320L30 320L** 1(*LC)
420 Spacer, Unload Position (30 % load) CS42000-320LL30 320LL* 1(*LLC)
421 O-ring PA11-058 JIS B 2401 P58 2
432-1 O-ring PA12-200 JIS B 2401 G200 4
432-2 O-ring PA12-165 JIS B 2401 G165 4
433-1 O-ring PA12-200 JIS B 2401 G200 4
433-2 O-ring PA12-165 JIS B 2401 G165 4
594 Hexagon Socket Head Cap Screw NB35420-075 M20×75 12
595-A Hexagon Socket Head Cap Screw NB35424-110 M24×110 10
595-B Hexagon Socket Head Cap Screw NB35420-110 M20×110 2
596 Alignment Pin NE2316-065A Φ16×65 2
597
Special Spring Washer for Hexagon
Socket Head Cap Screw ND330-06 No.3 6 3
605-A Plug NF021-NPT03 NPT3/8 3
605-B Plug NF021-NPT010 NPT1 1/4 1
661 Snap Ring C type External NG12-070 JIS B 2804 S70 1
674 O-ring for BOD type Mechanical Seal PA62-039 AS568A 261 1
- Flange, Oil drain CZA01-300C0004B ANSI #300 1/2" 1
- Flange, Oil drain CZA01-300C0004B ANSI #300 1/2" 1
- Flange, Oil drain CZA01-300C01B ANSI #300 1" 1
Flange Gasket, Oil drain CZA01-300C0004B ANSI #300 1/2" 1
Flange Gasket, Oil drain CZA01-300C0004B ANSI #300 1/2" 1
Flange Gasket, Oil drain CZA01-300C01B ANSI #300 1" 1
Stud Bolt CZA01-300C0004B 1/2" -13UNC×60mm 4
Stud Bolt CZA01-300C0004B 1/2" -13UNC×60mm 4
Stud Bolt NBU605/8-11UNC 5/8" -11UNC×75mm 4
Hexagonal Nut NCU1501/2-13UNC 1/2" -13UNC 8
Hexagonal Nut NCU1505/8-11UNC 5/8" -11UNC 4
 The part code of the O-ring is the one assigned to NBR which is standard material.
When the material of the O-ring is other than NBR, a different part code is used for
each material.
If you are using O-rings made from other than the standard material, please contact
MAYEKAWA when placing an order.
2200Q4JE-MY-C9-N_2015.04.
Chapter 7 Related Documents
Compound 2-stage Screw Compressor 4032**C Tightening Torques for Bolts and Nuts
7-13
7.3 Tightening Torques for Bolts and Nuts
Table 7-2 List of Tightening Torques
 Hexagon socket head cap screw
P/N What is tightened
Torque
Q’ty. Size
N·m kgf·cm
2-1 Main Rotor Casing (1) to
Suction Cover (1) and Bearing Head (1) 1600 16000 60 M30×110
2-2 Main Rotor Casing (2) to
Suction Cover (2) and Bearing Head (2) 750 7500 52 M24×80
18-1 Bearing Cover to Bearing Head (1) 1600 16000 22 M30×100
18-2 Suction Cover (1) to Bearing Head (2) 750 7500 22 M24×75
18-3 Suction Cover (1) to Bearing Head (2) 750 7500 4 M24×95
24 Balance Piston Cover to Suction Cover (2) 240 2400 11 M16×45
53 Seal Cover to Bearing Cover 240 2400 8 M16×40
58-1 Unloader Push Rod (1) to Unloader Slide Valve (1-1) 140 1400 8 M14×55
58-2 Unloader Slide Valve (2-2) to Unloader Slide Valve (1-2) 240 2400 4 M16×50
61 Unloader Cylinder (2) to Balance Piston Cover 450 4500 2 M20×50
62 Unloader Cylinder (2) to
Balance Piston Cover and Suction Cover (2) 450 4500 6 M20×110
76-1 Unloader Cover (1) to Unloader Cylinder (1) 640 6400 8 M22×70
76-2 Unloader Cover (2) to Unloader Cylinder (2) 240 2400 8 M16×40
81-1 Bearing Gland (1) to Unloader Cover (1) 10 100 3 M6×15
81-2 Bearing Gland (2) to Unloader Cover (2) 10 100 3 M6×15
159 Shaft Key for Drive Hub 50 500 2 M10×25
166-1 Oil Gland (1) to Bearing Head (1) 90 900 4 M12×25
166-2 Oil Gland (2) to Bearing Head (2) 6 60 4 M5×12
212-A Indicator Fixture (A) to Unloader Cover (1) 25 250 2 M8×30
212-B Indicator Fixture (A) to Unloader Cover (1) 25 250 2 M8×95
212-C Indicator Fixture (B) to Indicator Fixture (A) 25 250 4 M8×20
247-1 Unloader Slide Valve Guide to Main Rotor Casing(1) 240 2400 8 M16×75
594 Bearing Cover to Unloader Cylinder (1) 450 4500 12 M20×75
595-A Bearing Cover to Bearing Head (1) 750 7500 10 M24×110
595-B Bearing Cover to Bearing Head (1) 450 4500 2 M20×110
 Hexagon Head Bolt
P/N What is tightened Torque Q’ty. Size
N·m kgf·cm
45-1 Thrust Bearing Gland (1) 120 1200 8 M20×55
45-2 Thrust Bearing Gland (2) 60 600 8 M16×45
 Stud Bolt and Hexagonal Nut
P/N What is tightened Torque N·m kgf·cm Q’ty. Size
97-1 Low-stage Gas Outlet Flange (Intermediate Pipe) 200 2000 16 M20×75
97-4 High-stage Gas Inlet Flange (Intermediate Pipe) 200 2000 16 M20×55
2200Q4JE-MY-C9-N_2015.04.
Chapter 7 Related Documents
Compound 2-stage Screw Compressor 4032**C Tightening Torques for Bolts and Nuts
7-14
 Lock Nut
P/N What is tightened
Tightening torque (N·m) Q’ty. Size
Standard Maximum
39-1 Thrust Bearing (1) Note 1 5347 6683 2 AN28
39-2 Thrust Bearing (2) Note 1 2259 2824 2 AN21
69-1 Unloader Piston (1) 180 - 2 AN10
69-2 Unloader Piston (2) 180 - 1 AN10
71 Unloader Slide Valve (2) 408 510 1 AN12
Note 1: When tightening a lock nut to the rotor axis, if it is difficult to use a torque wrench, manage
the tightening torque of the lock nut controlling the tightening angle range as explained below.
 Tightening Angle Range of Lock Nuts for Rotors
a) After tightening the lock nut by hand, further tighten the lock nut by using a lock nut wrench until the
rotor starts to turn. Take care not to over-tighten.
b) Put a mark on the lock nut at the right side edge of the rotor groove where the stopper tongue of the
lock washer fits in, as shown in Figure 7-9.
c) From this marking position, tighten the lock nut in such a way that rotation can be stopped within the
tightening angle range shown in Table 7-3.
When measuring the angle, use an angle gauge which is set to the diameter of rotor shaft.
Table 7-3 Tightening Angles Specified
for Lock Nuts of Rotor
* When tightening lock nut, tightening start position
differs between the first time tightening and the
tightening for the second time or after. Therefore,
angle ranges are specified also for the second
time tightening.
Figure 7-6 Position where mark is put
Angle gauge (example)
Model Angle range
First time
tightening
320 (High-stage) 25° to 35°
400 (Low-stage) 25° to 35°
Second time
tightening
320 (High-stage) 15° to 25°
Marking 400 (Low-stage) 15° to 25° Rotor groove (slot)
where stopper tongue of
the lock washer fits
2200Q4JE-MY-C9-N_2015.04.
Chapter 7 Related Documents
Compound 2-stage Screw Compressor 4032**C About the O-rings Used
7-15
7.4 About the O-rings Used
7.4.1 List of O-rings Used
Table 7-4 List of O-rings Used
O-ring
Part No.
Location JIS B 2401
attached place description in Size
functional aspect
9 O-ring Gland same as left G95
35 Balance Piston Sleeve same as left G190
63-1 Unloader Cylinder (1) same as left G250
63-2 Balance Piston Cover Unloader Cylinder (2) G240
65-1 Unloader Piston (1) same as left P215
65-2 Unloader Piston (2) same as left P200
73-1 Unloader Push Rod (1) Unloader Piston (1) G45
73-2 Unloader Push Rod (2) Unloader Piston (2) P44
75-1 Unloader Cover (1) same as left G220
75-2 Unloader Cover (2) same as left G210
89-2 Guide block Stem (2) same as left P24
150-1 Thrust Bearing Gland (1) same as left G290
150-2 Thrust Bearing Gland (2) same as left G220
163 Unloader Push Rod (1) same as left G65
325 O-ring Gland (1) same as left P70
328 O-ring Gland (2) same as left P58
421 Unload Spacer (2) same as left P58
432-1 Main Bearing (1) same as left G200
432-2 Main Bearing (2) same as left G165
433-1 Side Bearing (1) same as left G200
433-2 Side Bearing (2) same as left G165
674 Seal Cover for BOD type Mechanical Seal same as left Note2
Note 1: Attached place means parts which they have grooves or with taper cutting for attaching O-ring.
Note 2: AS568A 261（Old JIS W1516 G39）
7.4.2 O-ring Materials Used for Screw Compressor
Table 7-4 List of O-ring Materials Used for Screw Compressor
(excluding mechanical seal)
Working fluid O-ring material
Ammonia
HFC NBR
CO2 FKM
HNBR
R23
FKM
Propane
Propylene
Natural gas
City gas
Helium

Mycom I Series Parts List

P/N Part name Code No. Remarks Qty
6-1 Gasket, Suction Adapter CS00600-I125 i125 1
6-2 Gasket, Strainer Cover CS00900-I125 i125 1
7 O-ring see Note 1 PA12-140 JIS B 2401 G140 1
12 Gasket, Bearing Head CS01200-I125 i125 1
17 Gasket, Bearing Cover CS01700-I125 i125 1
23 Gasket, End Cover CS02300-I125 i125 t=1.0 1
27-1 Radial Bearing CS02800-FM125M FM125M 2
27-2 Radial Bearing CS02800-FM125F FM125F 2
30 Balance Piston see Note 2 CS03000-I125 i125 1
33 Sleeve, Balance Piston see Note 2 CS03300-I125 i125 1
35 O-ring see Note 1 PA11-016 JIS B 2401 P16 1
38-1 Thrust Bearing M CS03800-I125M i125M 1
38-2 Thrust Bearing F CS03800-I125F i125F 1
40-1 Lock Washer NG32-008 AW8 1
40-2 Lock Washer NG32-009 AW9 1
49 O-ring see Note 1 PA12-085 JIS B 2401 G85 1
50 Oil Seal see Note 2 CS05000-125D 125*** Rareflon 1
52 Gasket, Seal Cover CS05200-125N 125*** 1
100 Mechanical Seal Assembly see Note 3 CS10002-125EBS BBSE 125*** 1set
237-1 Torsional Slip Washer M CS23700-F125M FM125 M 1
237-2 Torsional Slip Washer F CS23700-125 125L** 1
395 Gasket, Unloader Cover CS39500-I160 i160* 2
480 Strainer Element see Note 2 CS48000-I160 i160* 1
489 Valve Seat CS48900-I125 i125 1
491 Check Valve Shaft see Note 2 CS49100-I125 i125 1
495 O-ring see Note 1 PA11-007 JIS B 2401 P7 1
2202M4JE-MY-iS2-N_2015.06.
Chapter 5 Maintenance and Inspection
Screw Compressor i-series 5.3 Compressor Disassembly Preparation
5-9
Table 5-8 Replacement parts of i160*
P/N Part name Code No. Remarks Qty
6 Gasket, Strainer Cover CS00900-I160 i160 t=0.5 2
7-1 O-ring see Note 1 PA12-150 JIS B 2401 G150 1
7-2 O-ring see Note 1 PA12-140 JIS B 2401 G140 1
12 Gasket, Bearing Head CS01200-I160 i160 t=0.5 1
17 Gasket, Bearing Cover CS01700-I160 i160 t=0.5 1
23 Gasket, End Cover CS02300-I160N i160 t=1.0 1
27-1 Radial Bearing M CS02800-FM160M FM160 2
27-2 Radial Bearing F CS02800-FM160F FM160 2
30 Balance Piston see Note 2 CS03000-I160 i160 1
33 Sleeve, Balance Piston see Note 2 CS03300-I160 i160 1
35 O-ring see Note 1 PA11-024 JIS B2401 P24 2
38-1 Thrust Bearing M CS03800-I160M 7311B 1
38-2 Thrust Bearing F CS03800-I160F 7312B 1
40-1 Lock Washer NG32-011 AW11 1
40-2 Lock Washer NG32-012 AW12 1
49 O-ring see Note 1 PA12-090 JIS B 2401 G90 1
50 Oil Seal see Note 2 CS05000-160VD 160*** (S55×70×9) 1
52 Gasket, Seal Cover CS05200-160N 160*** t=0.5 1
93 Gasket, Suction Flange PL300-125 ANSI 300 # 5" 1
96 Gasket, Discharge Flange PL300-080 ANSI 300 # 3" 1
100 Mechanical Seal Assembly see Note 3 CS10002-160EBS 160V BBSE 1set
150-1 O-ring see Note 1 PA12-110 JIS B 2401 G110 1
150-2 O-ring see Note 1 PA12-115 JIS B 2401 G115 1
216-2 Flange Gasket, Oil Inlet Port CR72000-025N MYCOM 25A 1
237-1 Torsional Slip Washer M CS23700-FM160M FM160 1
237-2 Torsional Slip Washer F CS23700-160 160*** 1
395 Gasket, Unloader Cover CS39500-I160 i160 t=1.0 2
480 Strainer Element see Note 2 CS48000-I160 i160 #150 Φ160×200 1
489 Valve Seat CS48900-I160 i160 1
491 Check Valve Shaft see Note 2 CS49100-I160 i160 1
495 O-ring see Note 1 PA11-007 JIS B 2401 P7 1

Mycom J Series Parts List

Explosion proof for Propane
S
M
L
1
Main rotor casing S
1
—
—
Main rotor casing M
—
1
—
Main rotor casing L
—
—
1
2
Hexagon socket head cap screw
M16×75
NB35416-075
40
3
Parallel pin
13 dia.x65 with female thread
NE2313-065A
4
4
Eyebolt
M16
NB600-16
2
5
Suction cover
1
6
O-ring
JIS B 2401 P450
PAH80-450
PC11-450
1
7
Eyebolt
M30
NB600-30
2
9-1
O-ring
JIS B 2401 P65
PAH80-065
PC11-065
1
9-2
Back-up ring for O-ring
SUN-2BP 65
PBP21-065
2
10-A
Plug
R3/8
NF06-010
1
10-B
Plug
R3/4
NF06-020
1
10-C
Plug
R1/2
NF06-015
1
10-D
Plug
R1/2
NF06-015
1
10-E
Plug
R1/2
NF06-015
1
11
Bearing head
1
12
O-ring
JIS B 2401 P450
PAH80-450
PC11-450
1
13
Eyebolt
M30
NB600-30
1
14
Spring pin
4 dia.×10
NE3204-010
4
15-A
Plug
R3/8
NF06-010
1
15-B
Plug
R3/4
NF06-020
1
15-C
Plug
R3/8
NF06-010
1
15-D
Plug
R3/8
NF06-010
1
16
Bearing cover
1
17-1
O-ring
JIS B 2401 P375
PAH80-375
PC11-375
1
17-2
O-ring
JIS B 2401 P14
PAH80-014
PC11-014
1
18-1
Hexagon socket head cap screw
M16×60
NB35416-060
5
18-2
Hexagon socket head cap screw
M16×90
NB35416-090
9
19
Parallel pin
13 dia.×65 with female thread
NE2313-065A
2
20
Spring pin
3 dia.×10
NE3203-010
1
21-A
Plug
R1/8
NF06-004
1
21-B
Plug
R1/8
NF06-004
1
21-C
Plug
R1/8
NF06-004
1
21-D
Plug
R3/8
NF06-010
1
21-E
Plug
R3/8
NF06-010
1
22
Balance piston cover
1
23-1
O-ring
JIS B 2401 G150
PAH81-150
1
23-2
O-ring
JIS B 2401 G115
PAH81-115
1
24
Hexagon socket head cap screw
M16×60
NB35416-060
13
25
Male rotor S
1
—
—
Male rotor M
—
1
—
Male rotor L
—
—
1
26
Female rotor S
1
—
—
Female rotor M
—
1
—
Female rotor L
—
—
1
27
Bearing, male rotor
Sleeve bearing
CS02700-J220M
2
28
Bearing, female rotor
Sleeve bearing
CS02700-J170M
2
29-1
Retaining ring C type internal
JIS B 2804 (H150)
NG11-150
2
29-2
Retaining ring C type internal
JIS B 2804 (H120)
NG11-120
2
30
Balance piston
200*UD
CS03000-J220
1
31
Key for balance piston
200***
CS03100-200
1
32
Retaining ring C type external
JIS B 2804 (S65)
NG12-065
1
33
Sleeve, balance piston
CS03300-J220
1
34
Spring pin
6 dia.×12
NE3206-012
2
35-2
O-ring
JIS B 2401 G150
PAH81-150
PC12-150
1
2206B0JE-DA-J-N_2016.03.
7 Related Documents
Screw Compressor J-series 7.1 Development View and Configuration Table of the Parts
7-11
Part No.
Part name
220J
Type, etc.
Part code No.
Quantity/unit
Standard
Explosion proof for Propane
S
M
L
37
Retaining ring C type internal
JIS B 2804 (H120)
NG11-120
1
38-1
Thrust bearing assembly, male rotor
7316BEAXT7DF
CS03800-J220M
1
38-2
Thrust bearing assembly, female rotor
7312BEAXT7DF
CS03800-J170M
1
39-1
Locknut
AN16
NG31-016
1
39-2
Locknut
AN12
NG31-012
1
40-1
Lock washer
AW16
NG32-016
1
40-2
Lock washer
AW12
NG32-012
1
41-1
Thrust bearing outer race spacer, male rotor
CS04100-J220M
1
41-2
Thrust bearing outer race spacer, female rotor
CS04100-J220F
1
42-1
Thrust bearing alignment spacer, male rotor
CS04200-J220M
1
42-2
Thrust bearing alignment spacer, female rotor
Spacer, alignment male rotor for 170J*
CS04200-J170M
1
43-1
Thrust bearing gland, male rotor
CS04300-J220M
1
43-2
Thrust bearing gland, female rotor
CS04300-J220F
1
45
Hexagon head screw
M12×50
NB111012-050
12
46
Conical spring washer
Hexagon head screw M12
ND320-012
12
48
Retainer for oil seal
CS04800-J220
1
49
O-ring
JIS B 2401 G145
PAH81-145
PC12-145
1
50
Oil seal
SA1J 75 100 13
CS05010-250VD
1
51
Seal cover
1
52-1
O-ring
JIS B 2401 G145
PAH81-145
PC12-145
1
52-2
O-ring
JIS B 2401 P14
PAH80-014
PC11-014
1
53
Hexagon socket head cap screw
M10×35
NB35410-035
8
54
Unloader slide valve S
1
—
—
Unloader slide valve M
—
1
—
Unloader slide valve L
—
—
1
58
Hexagon socket head cap screw
M8×35
NB35408-035
9
60
Unloader cylinder
1
61
Hexagon socket head cap screw
M16×90
NB35416-090
2
62
Hexagon socket head cap screw
M16×140
NB35416-140
6
63-1
O-ring
JIS B2401 G200
PAH81-200
PC12-200
2
63-2
O-ring
JIS B2401 P14
PAH80-014
PC11-014
2
64
Unloader piston
CS06400-J220
1
65
O-ring
JIS B2401 P170
PAH80-170
PC11-170
2
66
Teflon cap seal
SUNR-BE-170
CS06600-J220
2
67
Push rod, unloader slide valve
CS06700-J220
1
68
Guide pin
PH01NG 5×12 BK
NE2505-012
1
69
Locknut
AN07
NG31-007
1
70
Lock washer
AW07
NG32-007
1
73
O-ring
JIS B2401 P44
PAH80-044
PC11-044
1
74
Unloader cover
1
75-1
O-ring
JIS B2401 G175
PAH81-175
PC12-175
1
75-2
O-ring
JIS B2401 P14
PAH80-014
PC11-014
1
76
Hexagon socket head cap screw
M12×50
NB35412-050
8
77
Unloader indicator cam S
CS07700-J220S
1
—
—
Unloader indicator cam M
CS07700-J220M
—
1
—
Unloader indicator cam L
CS07700-J220L
—
—
1
78
Ball bearing
#6000
CS07800-200
1
79
Retaining ring C type external
JISB2804 (S10)
NG12-010
1
80
Bearing gland
CS08000-200
1
81
Hexagon socket head cap screw
M6×15
NB35406-015
3
82-1
O-ring
JIS B2401 P10A
PAH80-010A
PC11-010A
2
82-2
O-ring
JIS B2401 P16
PAH80-016
PC11-016
1
83
Retainer, O-ring
CS8300-170J
1
2206B0JE-DA-J-N_2016.03.
7 Related Documents
Screw Compressor J-series 7.1 Development View and Configuration Table of the Parts
7-12
Part No.
Part name
220J
Type, etc.
Part code No.
Quantity/unit
Standard
Explosion proof for Propane
S
M
L
84
Spacer, unloader cover
CS08400-J170
1
91
Shaft key
CS09100-J220
1
100
Mechanical seal assembly
(including 100-1 to 100-5)
CS10002-250EBS
1
100-1
O-ring
AS568A-340
PAH82-340
PC62-043
1
100-2
Mating ring
1
100-3
Rotating ring
1
100-4
O-ring
AS568A-148
PAH82-148
PC56-148
1
100-5
Hexagon socket set screw
M8×9
1
120
Assembly, unloader indicator
1
137
Dial plate, unloader indicator
CS13700-J170
1
234
Name plate
1
237-1
Torsional slip washer M
CS23700-J220M
1
237-2
Torsional slip washer F
CS23700-160
1
246
Guide, unloader slide valve
1
247
Hexagon socket head cap screw
M8×90
NB35408-090
4
248
Spring lock washer
Hexagon socket head cap screw M8
ND330-08
4
249
Parallel pin
8 dia.×80
NE2008-080
2
250-1
Thrust washer, male rotor
CS25000-J220
1
250-2
Thrust washer, female rotor
CS25000-160
1
267
Spring lock washer
Hexagon socket head cap screw M8
ND330-08
9
289
Slide valve S, Vi
1
—
—
Slide valve M, Vi
—
1
—
Slide valve L, Vi
—
—
1
292
Push rod S, Vi
CS29200-J220S
1
—
—
Push rod M, Vi
CS29200-J220M
—
1
—
Push rod L, Vi
CS29200-J220L
—
—
1
293
Spiral retaining ring
FRSN-56
NGFR-56
2
294
Piston, Vi
CS29400-J220
1
295
O-ring
JIS B2401 P65
PAH80-065
PC11-065
1
296
Cylinder, Vi
1
297
Partition plate, unloader cylinder
CS29700-J220
1
298
O-ring
JIS B2401 G175
PAH81-175
PC12-175
1
299-1
O-ring
JIS B2401 G100
PAH81-100
PC12-100
1
299-2
O-ring
JIS B2401 G200
PAH81-200
PC12-200
1
325-1
O-ring
JIS B2401 P44
PAH80-044
PC11-044
3
325-2
Back-up ring for O-ring
SUN-2BP 44
PBP21-044
2
396-1
Liner M for thrust adjustment
(Service part)
396-2
Liner F for thrust adjustment
160*** (Service part)
420
Unloader spacer S
CS42000-J220S
1
—
—
Unloader spacer M
CS42000-J220M
—
1
—
421
O-ring
JIS B2401 P44
PAH80-044
PC11-044
2
—
432
O-ring
JIS B2401 G130
PAH81-130
PC12-130
4
433
O-ring
JIS B2401 G100
PAH81-100
PC12-100
4
446
Key, push rod for unloader slide valve
200*** Key for balance piston
CS03100-200
1
451
Push rod gland for unloader slide valve
CS45100-J220
1
458-1
Plug
R3/4
NF06-020
1
458-2
Plug
R3/8
NF06-010
4
459
Plug
R3/8
NF06-010
1
481
Check valve slider
CS48100-J220
1
485
Spring, check valve
O.D 32, wire diameter 2.6
Free length 250
CS48500-J220
1
486
Locknut
FU nut FU05SS
NG42-05
1
487
Plain washer
JIS B 1256, normal, product grade C, M24
ND110-24
1
488
Sheet stopper
CS48800-J220
1
2206B0JE-DA-J-N_2016.03.
7 Related Documents
Screw Compressor J-series 7.1 Development View and Configuration Table of the Parts
7-13
Part No.
Part name
220J
Type, etc.
Part code No.
Quantity/unit
Standard
Explosion proof for Propane
S
M
L
489
Valve sheet
CS48900-J220
1
490
Valve disc
CS49000-J220
1
491
Check valve stem
CS49100-J220
1
492
Suction adapter
1
493
Hexagon socket head cap screw
M22×60
NB35422-060
12
494
O-ring
JIS B2401 P220
PAH80-220
PC11-220
1
495
Check valve stem gland
CS49500-J220
1
496
Plain washer
JIS B1256, normal M12
1
497
Hexagon nut
M12
NC30-12
1
528
Sleeve, oil seal
250***
CS52800-250VD
1
529
Hexagon socket set screw
M6×8
NA83606-008
2
535
Hexagon socket head cap screw
M5×75
NB35405-075
8
536
Spring lock washer
Hexagon socket head cap screw M5
ND330-05
8
537
Bush, P14 type O-ring
CS53700-J170
4
561
O-ring
JISB2401 P12
PAH80-012
PC11-012
8
562
Capacity control / variable Vi solenoid valve
SBL5B-4BL (UL,CSA)
KK425-1/2/3
－
2
SXL6-4BL (CE)
－
Dummy block, solenoid valve
with bushing
－
591
Parallel pin
16 dia.×55 with female thread
NE2313-065A
2
605
Plug
R1/2
NF06-015
1
607-A
Plug
R1/8
NF06-004
1
607-B
Plug
R1/8
NF06-004
1
607-C
Plug
R1/8
NF06-004
1
611
Sleeve, shower flashing
CS61100-J220
1
657
O-ring
JIS B2401 G120
PAH81-120
PC12-120
1
658
Retaining ring C type internal
JIS B2804 (H120)
NG11-120
1
709
Vi position sensor rod housing
CS70900-J220
1
711
Spring
O.D 13, wire diameter 1.6
Free length 100
CS71100-J170
1
712
Vi position sensor rod
CS71200-J220
1
713
O-ring
JIS B2401 P12
PAH80-012
PC11-012
1
714
O-ring
JIS B2401 P6
PAH80-006
PC11-006
1
715
Plug, Vi position sensor rod
CS71500-J170
1
716
Retaining ring E type
JIS B2804 E snap ring 4
NG13-004
1
717
O-ring
JIS B2401 G25
PAH81-025
PC12-025
1
718
Gland, Vi position sensor rod housing
CS71800-J170
1
719
Hexagon socket head cap screw
M6×25
NB35406-025
4
720
Vi position sensor support
CS72000-J170
-
1
721
Potentiometer
Midori Precisions LP-10FB
CS12907-J1701
-
1
722
Hexagon socket head cap screw
M3×10
NB35403-010
-
2
723
Hexagon socket head cap screw
M6×25
NB35406-025
-
2
724
Vi position sensor box
-
1
725
Packing, Sensor box
-
1
726
Hexagon socket head cap screw
M5×15
NB35405-015
4
794
Vi position sensor assembly
CS72100-J170
1
728-1
E plug
CS72810-J220
1
728-2
E plug gland
CS72820-J220
1
728-3
E plug flange
CS72830-J220
1
728-4
O-ring
JIS B2401 G45
PAH81-045
PC12-045
1
728-5
Hexagon head screw
M16×45
NB111016-045
2
731-A
Plug
R1/8
NF06-004
1
731-B
Plug
R1/8
NF06-004
1
732-A
Plug
R1/8
NF06-004
1
732-B
Plug
R1/8
NF06-004
1
732-C
Plug
R1/8
NF06-004
1
2206B0JE-DA-J-N_2016.03.
7 Related Documents
Screw Compressor J-series 7.1 Development View and Configuration Table of the Parts
7-14
Part No.
Part name
220J
Type, etc.
Part code No.
Quantity/unit
Standard
Explosion proof for Propane
S
M
L
732-D
Plug
R1/8
NF06-004
1
733-A
Plug
R1/8
NF06-004
1
733-B
Plug
R1/8
NF06-004
1
734-1
Inner cover M, balance piston cover
CS73400-J280F
2
734-2
Inner cover F, balance piston cover
Inner cover, balance piston cover for 170J*
CS73400-J170
1
736
Partition plate, suction cover
CS73600-J220
1
744
O-ring
JIS B2401 G70
PAH81-070
PC12-070
1
745
Rivet
3 dia.×6
4
235-1
Motor spacer
For NEMA 44*D
CS23502-
J220NEMA44
1
Motor spacer
For NEMA 50*D
CS23502-
J220NEMA50
Motor spacer
For IEC FF-600
CS23502-
J220IEC60
Motor spacer
For IEC FF-740
CS23502-
J220IEC74
235-2
Plate, motor spacer
CS23510-J170
2
235-3
Hexagon socket head cap screw
M6×15
NB35406-015
8
739
Hexagon socket head cap screw
M16×60
NB35416-060
8
740
Parallel pin
13 dia.×65 with female thread
NE2313-065A
2

Mycom SCV Series Parts List

P/N Part Name Code No. Remarks Q’ty.
1 Main Rotor Casing CS00100-160VXL 160VS* 1 (VS*)
1 Main Rotor Casing CS00100-160VXS 160VM* 1 (VM*)
1 Main Rotor Casing CS00100-160VXM 160VL* 1 (VL*)
2 Hexagon Socket Head Cap Screw NB35412-040 M12 x 40 52
3 Alignment Pin NE2013-040 Φ13 x 40 4
4 Eye Bolt NB600-16 M16 1
5 Suction Cover CS00500-160VX 160V** 1
6 Gasket, Suction Cover CS00601-160VN 160LDV 1
8 Spring Pin NE3204-010 Φ4 x 10 2
9 O-ring PA11-046 JIS B 2401 P46 1
10 A Plug NF06-008 R 1/4 1
10 B Plug NF06-008 R 1/4 1
10 C Plug NF06-010 R 3/8 1
10 D Plug NF06-010 R 3/8 1
11 Bearing Head CS01100-160VXG 160V** 1 (V*D)
11 Bearing Head CS01100-160VXD 160V*G 1 (V*G)
12 Gasket, Bearing Head CS01200-160VN 160*** 1
13 Eye Bolt NB600-12 M12 1
14 Spring Pin NE3204-010 Φ4 x 10 2
16 Bearing Cover CS01600-160VXG 160V** 1 (V*D)
16 Bearing Cover CS01600-160VXD 160V*G 1 (V*G)
17 Gasket, Bearing Cover (D) CS01700-160VG 160V** 1 (V*D)
17 Gasket, Bearing Cover (G) CS01700-160VD 160V*G 1 (V*G)
18 1 Hexagon Socket Head Cap Screw NB35412-040 M12 x 40 19 (V*D)
24 (V*G)
18 2 Hexagon Socket Head Cap Screw NB35412-080 M12 x 80 7 (V*D)
19 Alignment Pin NE2010-040 Φ10 x 40 2
20 Spring Pin NE3203-010 Φ3 x 10 1
22 Balance Piston Cover CS02200-160VX 160V** 1
23 Gasket, Balance Piston Cover CS02300-160N 160* 1
24 Hexagon Socket Head Cap Screw NB35410-025 M10 x 25 11
25 Male Rotor
CS02500-160VS 160VS* 1 (VS*)
26 Female Rotor
25 Male Rotor
CS02500-160VM 160VM* 1 (VM*)
26 Female Rotor
25 Male Rotor
CS02500-160VL 160VL* 1 (VL*)
26 Female Rotor
27 Main Bearing O-ring type CS0270-DRT 160*** 2
28 Side Bearing O-ring type CS0280-DRT 160*** 2
29 Snap Ring (Internal) NG11-102 H102 4
30 Balance Piston CS03000-160H 160**H 1
31 Key, Balance Piston CS03100-160 160** 1
32 Snap Ring (External) NG12-050 S50 1
33 Sleeve, Balance Piston CS03300-160H 160**H 1
34 Set Screw NA83606-015 M6 x 15 2
35 O-ring PA12-095 JIS B 2401 G95 1
36 O-ring Spacer CS03600-160 160*** 1
37 Snap Ring (Internal) NG11-102 H102 2
2201Q2JE-HO-S6-N_2015.06.
Chapter 7 Related Documents
SCV-series Screw Compressor 7.2 Parts Configuration Table 160V**
7-7
P/N Part Name Code No. Remarks Q’ty.
38 Thrust Bearing CS03800-160P 7212B 2
39 Lock Nut NG31-012 AN12 2
40 Lock Washer NG32-012 AW12 2
41 Spacer, Thrust Bearing Outer Race CS04100-160 160*** 2
42 Spacer, Thrust Bearing Alignment CS04200-160 160*** 2
43 Thrust Bearing Gland CS04300-160 160*** 2
45 Hexagon Head Bolt NB15510-030 M10 x 30 8
46 Conical Spring Washer ND150-010 M10 8
46 Lock Washer Set (old, plate type) CS0469-D 160*** 8ps/set -
48 Retainer, Oil Seal CS04800-160 160*** 1
49 O-ring PA12-090 JIS B 2401 G90 1
50 Oil Seal CS05010-160VD SA1J55 x 70 x 9 1
51 Seal Cover CS051000-160BBS 160*** 1
52 Gasket, Seal Cover CS05200-160N 160*** 1
53 Hexagon Socket Head Cap Screw NB35408-025 M8X25 8
54 Unloader Slide Valve CS05400-160VLD 160VS* 1 (VS*)
54 Unloader Slide Valve (with groove) - 160VS* 1 (VS*)
54 Unloader Slide Valve CS05400-160VSD 160VM* 1 (VM*)
54 Unloader Slide Valve (with groove) - 160VM* 1 (VM*)
54 Unloader Slide Valve CS05400-160VMD 160VL* 1 (VL*)
54 Unloader Slide Valve (with groove) - 160VL* 1 (VL*)
58 Hexagon Socket Head Cap Screw NB35406-030 M6 x 30 5
60 Unloader Cylinder CS06000-160VX 160V** 1
61 Hexagon Socket Head Cap Screw NB35410-025 M10 x 25 2
62 Hexagon Socket Head Cap Screw NB35410-065 M10 x 65 6
63 O-ring PA12-125 JIS B 2401 G125 1
64 Unloader Piston CS06400-160D 160*** 1
65 O-ring PA11-100 JIS B 2401 P100 1
66 Teflon Cap Seal CS06600-160 CAP-1BE100 1
67 Push Rod, Unloader Slide Valve CS06700-160VD 160V** 1
68 Guide Pin NE2503-008 Φ3 x 8 1
69 Lock Nut NG31-005 AN05 1
70 Lock Washer NG32-005 AW05 1
73 O-ring PA11-021 JIS B 2401 P21 1
74 Unloader Cover CS07400-160 160* 1
75 O-ring PA12-110 JIS B 2401 G110 1
76 Hexagon Socket Head Cap Screw NB35408-025 M8 x 25 8
77 Indicator Cam CS07700-160VXML 160VS* 1 (VS*)
77 Indicator Cam CS07700-160VXS 160VM*160VL* 1 (VM*)
1 (VL*)
78 Ball Bearing CS07800-200 #6000 1
79 Snap Ring (External) NG12-010 S10 1
80 Bearing Gland CS08000-200 200*** 1
81 Hexagon Socket Head Cap Screw NB35406-015 M6 x 15 3
82 V-ring CS08200-200B 20 x 10 x 12 1
83 Spring CS08300-200 200*** 1
84 Retainer, Indicator Cam Spring CS08400-200 200*** 1
2201Q2JE-HO-S6-N_2015.06.
Chapter 7 Related Documents
SCV-series Screw Compressor 7.2 Parts Configuration Table 160V**
7-8
P/N Part Name Code No. Remarks Q’ty.
91 Shaft Key CS09100-160 160*** 1
92 Suction Flange CS71400-125MK MYK125A 1
93 Gasket, Suction Flange CR72000-125N MYK125A 1
94 Hexagon Head Bolt NB12020-055 M20 x 55 8
95 Discharge Flange without hole CS71400-P100CD MYK100CD 1 (V*D)
95 Discharge Flange with hole CS71400-100CDMK MYK100CD 1 (V*D)
95 Discharge Flange without hole - MYK100A
Female 1
95 Discharge Flange with hole CS74100-100 MYK100A
Female 1
96
Gasket, Discharge Flange (for the case V*G
model or V*D model used No.235) CR72000-100N MYK100A 1
97
Hexagon Head Bolt (for the case that is not
using No.235 Discharge flange spacer) NB12022-055 M22 x 55 4
97
Hexagon Head Bolt (for the case using
No.235 Discharge flange spacer) NB12022-080 M22 x 80 4
100 Mechanical Seal Assembly CS10000-160BT 160V** BOS Type 1
100 Mechanical Seal Assembly CS10002-160EBS BBS-E 1
120 Unloader Indicator Assembly CS12000-200VXF V-series 0-100% 1
125 Micro-Switch CS12500-200 200*** Z15GW 2
127 Micro-Switch Cam CS1279-200V 200VS\L 1
129 Wire wound type Potentiometer CS1299-E10 with Wires 1
129 Conductive Plastic type Potentiometer CS12919-E10 with Wires -
137 Indicator Dial CS13700-200VD 200VL* 1
235
Spacer, Discharge Flange
(This spacer is not necessary for CD flange.) FX101-160 1 (V*D)
236 Gasket, Discharge Flange Spacer CS23600-160N 1 (V*D)
237 Torsional Slip Washer CS23700-160 160*** 2
250 Thrust Washer CS25000-160 160*** 2
251 Electromizer (Economizer) Flange CR74000-025 MYK25A 1
252 Gasket. Electromizer (Economizer) Flange CR72000-025N 1
253 Hexagon Head Bolt NB15512-035 M12 x 35 4
254 Liquid Injection (Aquamizer) Flange CR74000-020 MYK20A 1
255 Gasket, Liquid Injection Flange CR72000-020N 1
256 Hexagon Head Bolt NB15512-035 M12 x 35 2
267 Special Spring Washer ND330-06 M6 5
289 Variable Vi auxiliary Slide Valve CS28900-160VLD 160VS* 1 (VS*)
289 Variable Vi auxiliary Slide Valve CS28900-160VSD 160VM* 1 (VM*)
289 Variable Vi auxiliary Slide Valve CS28900-160VMD 160VL* 1 (VL*)
325 O-ring PA11-030 JIS B 2401 P30 2
326 O-ring Gland CS32600-160VD 1
420 Spacer, Unloader Positioning CS42000-160VSD 160VS* 1 (VS*)
420 Spacer, Unloader Positioning CS42000-160VMD 160VM* 1 (VM*)
421 O-ring PA11-030 JIS B 2401 P30 1 (VS*)
432 O-ring PA12-085 JIS B 2401 G85 4
433 O-ring PA12-085 JIS B 2401 G85 4
444 Vi Adjusting Rod CS44400-160VLD 160VS* 1 (VS*)
444 Vi Adjusting Rod CS44400-160VSD 160VM* 1 (VM*)
444 Vi Adjusting Rod CS44400-160VMD 160VL* 1 (VL*)
445
Lock Washer, Variable Vi Auxiliary Slide
Valve
CS44500-160VD 160V** 1
446 Vi Square Washer, Teflon Bushing CS44600-160VD 1
2201Q2JE-HO-S6-N_2015.06.
Chapter 7 Related Documents
SCV-series Screw Compressor 7.2 Parts Configuration Table 160V**
7-9
P/N Part Name Code No. Remarks Q’ty.
448 Teflon Bushing CS44800-160VD 1
449 Thrust Washer CS44900-160VD 2
450 O-ring PA11-025 JIS B 2401 P25 2
451 O-ring PA11-025 JIS B 2401 P25 1
452 Hexagon Socket Head Cap Screw NB35404-010 M4 x 10 1
453 Hexagon Nut NC720-24 M24 1
454 Hexagon Socket Head Cap Screw NB35404-020 M4 x 20 1
455
Spring Washer, Hexagon Socket Head Cap
Screw ND330-04 M4 1
456 Hexagon Socket Head Cap Screw NB35405-010 M5 x 10 2
458 Plug NF06-004 R 1/8 4
459 Plug NF06-015 R 1/2 1
522 Domed Cap Nut NC921-24 M24 1
523 O-ring PA11-025 JIS B 2401 P25 1
533
Spring Washer, Hexagon Socket Head Cap
Screw ND330-04 M4 1
605 Plug NF06-015 R 1/2 1
607 A Plug NF06-008 R 1/4 1
607 B Plug NF06-008 R 1/4 1
607 C Plug NF06-008 R 1/4 1
680 A Conical Spring Washer, Vi Adjusting Rod ND160-024 M24 1
680 B Conical Spring Washer, Vi Adjusting Rod ND160-024 M24 1
 The part code of the O-ring is the one assigned to NBR which is standard material.
When the material of the O-ring is other than NBR, a different part code is used for
each material.
If you are using O-rings made from other than the standard material, please contact
MAYEKAWA when placing an order.
 The Code No. of parts shown in parentheses below is applied to the product until the
end of November, 2014:
(P/N 120 Unloader Indicator Assembly, P/N 125 Micro-Switch, P/N 129 Potentiometer)
 For the Code No. of new type indicator part, refer to the separately dedicated
Instruction manual for it.
2201Q2JE-HO-S6-N_2015.06.
Chapter 7 Related Documents
SCV-series Screw Compressor 7.2 Parts Configuration Table 200V**
7-10
Table 7-2 Parts Configuration Table of 200V** models
P/N Part Name Code No. Remarks Q’ty.
1 Main Rotor Casing CS00100-200VXS 200VS* 1 (VS*)
1 Main Rotor Casing CS00100-200VXM 200VM* 1 (VM*)
1 Main Rotor Casing CS00100-200VXL 200VL* 1 (VL*)
2 Hexagon Socket Head Cap Screw NB35416-050 M16X50 50
3 Alignment Pin NE2016-055 Φ16X55 4
4 Eye Bolt NB600-20 M24 1
5 Suction Cover CS00500-200VX 200V** 1
6 Gasket, Suction Cover CS00601-200VN 200*** 1
8 Spring Pin NE3206-012 Φ6X12 2
9 O-ring PA12-060 JIS B 2401 G60 1
10 A Plug NF06-010 R3/8 1
10 B Plug NF06-008 R1/4 1
10 C Plug NF06-015 R1/2 1
10 D Plug NF06-015 R1/2 1
11 Bearing Head CS01100-200VXD 200V** 1 (V*D)
11 Bearing Head CS01100-200VXG 200V*G 1 (V*G)
12 Gasket, Bearing Head CS01200-200N 200*** 1
13 Eye Bolt NB600-12 M12 1
14 Spring Pin NE3206-012 Φ6X12 2
16 Bearing Cover CS01600-200VXD 200V** 1 (V*D)
16 Bearing Cover CS01600-200VXG 200V*G 1 (V*G)
17 Gasket, Bearing Cover (D) CS01700-200VD 200V** 1 (V*D)
17 Gasket, Bearing Cover (G) CS01700-200VG 200V*G 1 (V*G)
18 1 Hexagon Socket Head Cap Screw NB35416-050 M16X50 15 (V*D)
18 (V*G)
18 2 Hexagon Socket Head Cap Screw NB35416-075 M16X75 8 (V*D)
18 3 Hexagon Socket Head Cap Screw NB35416-065 M16X65 6
19 Alignment Pin NE2010-050 Φ10X50 2
20 Spring Pin NE3203-010 Φ3X10 1
21 Plug NF06-004 R1/8 1
22 Balance Piston Cover CS02200-200VX 200V** 1
23 Gasket, Balance Piston Cover CS02300-200N 200V** 1
24 Hexagon Socket Head Cap Screw NB35412-030 M12X30 11
25 Male Rotor
CS02500-200VS 200VS* 1
26 Female Rotor
25 Male Rotor
CS02500-200VM 200VM* 1
26 Female Rotor
25 Male Rotor
CS02500-200VL 200VL* 1
26 Female Rotor
27 Main Bearing O-ring type CS0270-ERT 200*** 2
28 Side Bearing O-ring type CS0280-ERT 200*** 2
29 Snap Ring (Internal) NG11-130 H130 4
30 Balance Piston CS03000-200H 200**LDH 1
31 Key, Balance Piston CS03100-200 200V** 1
32 Snap Ring (External) NG12-065 S65 1
33 Sleeve, Balance Piston CS03300-200H 200**H 1
34 Set Screw NA83608-015 M8X15 2
35 O-ring PA11-120 JTS B 2401 P120 1
36 O-ring Spacer CS03600-200 200*** 1
2201Q2JE-HO-S6-N_2015.06.
Chapter 7 Related Documents
SCV-series Screw Compressor 7.2 Parts Configuration Table 200V**
7-11
P/N Part Name Code No. Remarks Q’ty.
37 Snap Ring (Internal) NG11-130 H130 2
38 Thrust Bearing CS03800-200P 200*** PPS 2
39 Lock Nut NG31-013 AN13 2
40 Lock Washer NG32-013 AW13 2
41 Spacer, Thrust Bearing Outer Race CS04100-200 200*** 2
42 Spacer, Thrust Bearing Alignment CS04200-200 200*** 2
43 Thrust Bearing Gland CS04300-200 200*** 2
45 Hexagon Head Bolt NB15512-035 M12X35 8
46 Conical Spring Washer ND150-012 M12 1L 8
46 Lock Washer Set (old, plate type) CS0469-E 200*** 8p./set -
48 Retainer, Oil Seal CS04800-200VD 200V** 1
49 O-ring PA12-115 JIS B 2401 G115 1
50 Oil Seal CS05010-200VD SA1J65x85x12 1
51 Seal Cover CS051000-200BBS 200V** 1
52 Gasket, Seal Cover CS05200-200N 200V** 1
53 Hexagon Socket Head Cap Screw NB35410-025 M10X25 8
54 Unloader Slide Valve CS05400-200VSD 200VS* 1 (VS*)
54 Unloader Slide Valve (with groove) - 200VS* 1 (VS*)
54 Unloader Slide Valve - 200VS* K-port 1 (VS*)
54 Unloader Slide Valve CS05400-200VMD 200VM* 1 (VM*)
54 Unloader Slide Valve (with groove) - 200VM* 1 (VM*)
54 Unloader Slide Valve CS05400-200VLD 200VL* 1 (VL*)
54 Unloader Slide Valve (with groove) - 200VL* 1 (VL*)
58 Hexagon Socket Head Cap Screw NB35408-045 M8X45 5
60 Unloader Cylinder CS06000-200VX 200V** 1
61 Hexagon Socket Head Cap Screw NB35412-030 M12X30 2
62 Hexagon Socket Head Cap Screw NB35412-075 M12X75 6
63 O-ring PA12-150 JIS B 2401 G150 1
64 Unloader Piston CS06400-200D 200*** 1
65 O-ring PA11-125 JTS B 2401 P125 1
66 Teflon Cap Seal CS06600-200 CAP-3BE125 1
67 Push Rod, Unloader Slide Valve CS0671-EV 200V** 1
68 Guide Pin NE2505-012 Φ5X12 1
69 Lock Nut NG31-007 AN07 1
70 Lock Washer NG32-007 AW07 1
73 O-ring PA12-030 JIS B 2401 G30 1
74 Unloader Cover CS07400-200 200*** 1
75 O-ring PA12-135 JIS B 2401 G135 1
76 Hexagon Socket Head Cap Screw NB35410-025 M10X25 8
77 Indicator Cam CS07700-200VXS 200VS* 1 (VS*)
77 Indicator Cam CS07700-200VXML 200VM* 200VL* 1 (VM*)
1 (VL*)
78 Ball Bearing CS07800-200 #6000 1
79 Snap Ring (External) NG12-010 S10 1
80 Bearing Gland CS08000-200 200V** 1
81 Hexagon Socket Head Cap Screw NB35406-015 M6X15 3
82 V-ring CS08200-200B 20X10X12 1
2201Q2JE-HO-S6-N_2015.06.
Chapter 7 Related Documents
SCV-series Screw Compressor 7.2 Parts Configuration Table 200V**
7-12
P/N Part Name Code No. Remarks Q’ty.
83 Spring CS08300-200 200V** 1
84 Retainer, Indicator Cam Spring CS08400-200 200*** 1
91 Shaft Key CS09100-200 200*** 1
92 Suction Flange without hole CS71400-P150 MYK150A(6") 1
93 Gasket, Suction Flange CR72000-150N MYK150A 1
94 Hexagon Head Bolt NB12022-055 M22X55 8
95 Discharge Flange without hole - MYK125A Female 1
95 Discharge Flange with hole CS74100-125 MYK125A Female 1
95 Discharge Flange without hole CS71400-P125CD MYK125CD 1 (V*D)
95 Discharge Flange with hole CS71400-125CDMK MYK125CD 1 (V*D)
96
Gasket, Discharge Flange (for the case V*G
model or V*D model used No.235) CR72000-125N MYK125A 1
97
Hexagon Head Bolt (for the case that is not
using No.235 Discharge flange spacer) NB12020-055 M20X55 8
97
Hexagon Head Bolt (for the case using
No.235 Discharge flange spacer) NB12020-080 M20X80 8
100 Mechanical Seal Assembly CS10002-200EBS 200BBSE 1
100 Mechanical Seal Assembly CS10000-200BE 200*** BOS TYPE -
120 Unloader Indicator Assembly CS12000-200VXF V-series 0-100% 1
125 Micro-Switch CS12500-200 200*** Z15GW 2
127 Micro-Switch Cam CS1279-200V 200VS\L 1
129 Wire wound type Potentiometer CS1299-E10 with wires 1
129 Conductive Plastic type Potentiometer CS12919-E10 with wires -
137 Indicator Dial CS13700-200VD 200V** L,M,H-port 1
215 Flange, Lubricating Oil inlet (Journal)
with hole CR74000-020 MM(MYK)
20A(3/4") 1
216 Gasket, Lubricating Oil inlet Flange CR72000-020N MYK20A 1
217 Hexagon Head Bolt NB15512-035 M12 X35 2
235
Spacer, Discharge Flange
(This spacer is not necessary for CD flange.) FX101-200 200V** 1 (V*D)
236 Gasket, Discharge Flange Spacer CS23600-200N 200V** 1 (V*D)
237 Torsional Slip Washer CS23700-200 200*** 2
250 Thrust Washer CS25000-200 200*** 2
251 Electromizer (Economizer) Flange with hole CR74000-032 MM(MYK)
32A(l"1/4) 1
252 Gasket. Electromizer (Economizer) Flange CR72000-032N MYK32A 1
253 Hexagon Head Bolt NB15512-040 M12X40 4
254 Liquid Injection (Aquamizer) Flange CR74000-025 MM(MYK) 25A(1") 1
255 Gasket, Liquid Injection Flange CR72000-025N MYK25A 1
256 Hexagon Head Bolt NB15512-035 M12X35 4
267 Special Spring Washer, Hexagon Socket Head
Cap Screw ND330-08 M8 5
289 Variable Vi auxiliary Slide Valve CS28900-200VSD 200VS* 1 (VS*)
289 Variable Vi auxiliary Slide Valve CS28900-200VMD 200VM* 1 (VM*)
289 Variable Vi auxiliary Slide Valve CS28900-200VLD 200VL* 1 (VL*)
325 O-ring PA11-040 JIS B 2401 P40 2
326 O-ring Gland CS32600-200VD 200V** 1
420 Spacer, Unloader Positioning CS42000-200VSD 200VS* 1 (VS*)
420 Spacer, Unloader Positioning CS42000-200VMD 200VM* 1 (VM*)
421 O-ring PA11-040 JIS B 2401 P40 2 (VS*)
432 O-ring PA62-022 AS568A-244 4
433 O-ring PA62-022 AS568A-244 4
2201Q2JE-HO-S6-N_2015.06.
Chapter 7 Related Documents
SCV-series Screw Compressor 7.2 Parts Configuration Table 200V**
7-13
P/N Part Name Code No. Remarks Q’ty.
444 Vi Adjusting Rod CS44400-200VSD 200VS* 1 (VS*)
444 Vi Adjusting Rod CS44400-200VMD 200VM* 1 (VM*)
444 Vi Adjusting Rod CS44400-200VLD 200VL* 1 (VL*)
445 Lock Washer, Variable Vi Auxiliary Slide Valve CS44500-200VD 200V** 1
446 Vi Square Washer, Teflon Bushing CS44600-200VD 200V** 1
448 Teflon Bushing CS44800-200VD 200V** 1
449 Thrust Washer CS44900-200VD 160V** to 320VD 2
450 O-ring PA11-035 JIS B 2401 P35 2
451 O-ring PA11-035 JIS B 2401 P35 1
452 Hexagon Socket Head Cap Screw NB35405-015 M5X15 1
453 Hexagon Nut NC140-30 M30 1
454 Hexagon Socket Head Cap Screw NB35406-020 M6X20 1
455
Special Spring Washer, Hexagon Socket Head
Cap Screw ND330-06 M6 1
456 Hexagon Socket Head Cap Screw NB35405-012 M5X12 2
458 1 Plug NF06-008 R1/4 1
458 2 Plug NF06-004 R1/8 3
459 Plug NF06-020 R3/4 1
522 Domed Cap Nut NC921-30 M30 1
523 O-ring PA11-035 JIS B 2401 P35 1
528 Oil Seal Sleeve CS52810-200VD 200V** 1
528 Oil Seal Sleeve with O-ring CS52809-200VD 200V** 1
529 Set screw NA83606-008 M6X8 2
533
Spring Washer, Hexagon Socket Head Cap
Screw ND320-005 M5 1
605 Plug NF06-020 R3/4 1
607 A Plug NF06-008 R1/4 1
607 B Plug NF06-008 R1/4 1
680 A Conical Spring Washer, Vi Adjusting Rod ND160-030 M30 Type 1
680 B Conical Spring Washer, Vi Adjusting Rod ND160-030 M30 Type 1
715 Cover Plate, Lubricating oil inlet Flange CS71500-020 20A 1
715 Cover Plate, Economizer inlet Flange CS71500-032 32A 1
715 Cover Plate, Liquid injection Flange CS71500-025 25A 1
744 O-ring PA12-060 JIS B 2401 G60 1
 The part code of the O-ring is the one assigned to NBR which is standard material.
When the material of the O-ring is other than NBR, a different part code is used for
each material.
If you are using O-rings made from other than the standard material, please contact
MAYEKAWA when placing an order.
 The Code No. of parts shown in parentheses below is applied to the product until the
end of November, 2014:
(P/N 120 Unloader Indicator Assembly, P/N 125 Micro-Switch, P/N 129 Potentiometer)
 For the Code No. of new type indicator part, refer to the separately dedicated
Instruction manual for it.
2201Q2JE-HO-S6-N_2015.06.
Chapter 7 Related Documents
SCV-series Screw Compressor 7.2 Parts Configuration Table 250V**
7-14
Table 7-3 Parts Configuration Table of 250V** models
P/N Part Name Code No. Remarks Q’ty.
1 Main Rotor Casing CS00100-250VXS 250VS* 1 (VS*)
1 Main Rotor Casing CS00100-250VXM 250VM* 1 (VM*)
1 Main Rotor Casing CS00100-250VXL 250VL* 1 (VL*)
1 Main Rotor Casing - 250VLL* 1 (VLLD)
2 Hexagon Socket Head Cap Screw NB35420-060 M20×60 44
3 Alignment Pin NE2016-070 Φ16×70 4
4 Eye Bolt NB600-30 M30 1
5 Suction Cover CS00500-250VX 250V** 1
5 Suction Cover - 250WV* 1 (VLLD)
6 Gasket, Suction Cover CS00601-250VN 250*** 1
7 Eye Bolt NB600-12 M12 2
8 Spring Pin NE3206-012 Φ6×12 2
9 O-ring PA12-065 JIS B 2401 G65 1
10 A Plug NF06-010 R3/8 1
10 B Plug NF06-008 R1/4 1
10 C Plug NF06-020 R3/4 1
10 D Plug NF06-015 R1/2 1
11 Bearing Head CS01100-250VXD 250V** 1 (V*D)
11 Bearing Head CS01100-250VXG 250V*G 1 (V*G)
12 Gasket, Bearing Head CS01200-250N 250*** 1
13 Eye Bolt NB600-12 M12 1
14 Spring Pin NE3206-012 Φ6×12 2
16 Bearing Cover CS01600-250VXD 250V** 1 (V*D)
16 Bearing Cover CS01600-250VXG 250V*G 1 (V*G)
17 Gasket, Bearing Cover (D) CS01700-250VD 250V** 1 (V*D)
17 Gasket, Bearing Cover (G) CS01700-250VG 250V*G 1 (V*G)
18 1 Hexagon Socket Head Cap Screw NB35416-050 M16×50
18 (V*D)
22 (V*G)
18 2 Hexagon Socket Head Cap Screw NB35416-090 M16×90 8 (V*D)
18 3 Hexagon Socket Head Cap Screw NB35416-070 M16×70 5
19 Alignment Pin NE2010-050 Φ10×50 2
20 Spring Pin NE3203-010 Φ3×10 1
21 Plug NF06-004 R1/8 1
22 Balance Piston Cover CS02200-250VX 250V** 1
23 Gasket, Balance Piston Cover CS02300-250N 250*** 1
24 Hexagon Socket Head Cap Screw NB35412-030 M12×30 11
25 Male Rotor
CS02500-250VS 250VS* 1 (VS*)
26 Female Rotor
25 Male Rotor
CS02500-250VM 250VM* 1 (VM*)
26 Female Rotor
25 Male Rotor
CS02500-250VL 250VL* 1 (VL*)
26 Female Rotor
27 Main Bearing O-ring type CS0270-FRT 250*** 2
28 Side Bearing O-ring type CS0280-FRT 250*** 2
2201Q2JE-HO-S6-N_2015.06.
Chapter 7 Related Documents
SCV-series Screw Compressor 7.2 Parts Configuration Table 250V**
7-15
P/N Part Name Code No. Remarks Q’ty.
29 Snap Ring (Internal) NG11-160 H160 4
30 Balance Piston CS03000-250H 250**H 1
31 Key, Balance Piston CS03100-250 250*** 1
32 Snap Ring (External) NG12-080 S80 1
33 Sleeve, Balance Piston CS03300-250H 250**H 1
34 Set Screw NA83608-020 M8×20 2
35 O-ring PA11-150 JIS B 2401 P150 1
36 O-ring Spacer CS03600-250 250*** 1
37 Snap Ring (Internal) NG11-160 H160 2
38 Thrust Bearing CS03800-250P 250*** PPS 2
39 Lock Nut NG31-017 AN17 2
40 Lock Washer NG32-017 AW17 2
42 Spacer, Thrust Bearing Alignment CS04200-250 250*** 2
43 Thrust Bearing Gland CS04300-250 250*** 2
45 Hexagon Head Bolt NB15516-045 M16×45 8
46 Conical Spring Washer ND150-016 M16 1L 8
46 Lock Washer Set (old, plate type) CS0469-F 250*** 8p./set -
48 Retainer, Oil Seal CS04800-250VD
250V**
BBSⅢ BBSE BOS 1
49 O-ring PA12-135 JIS B 2401 G135 1
50 Oil Seal CS05010-250VD SA1J 75×100×13 1
51 Seal Cover CS05100-250BBS
250V**
BBSⅢ BBSE BOS 1
52 Gasket, Seal Cover CS05200-250N 250*** 1
53 Hexagon Socket Head Cap Screw NB35412-030 M12×30 8
54 Unloader Slide Valve CS05400-250VSD 250VS* 1 (VS*)
54 Unloader Slide Valve CS05400-250VMD 250VM* 1 (VM*)
54 Unloader Slide Valve CS05400-250VLD 250VL* 1 (VL*)
54 Unloader Slide Valve - 250VLL* 1 (VLLD)
58 Hexagon Socket Head Cap Screw NB35410-055 M10×55 5
60 Unloader Cylinder CS06000-250VX 250V** 1
61 Hexagon Socket Head Cap Screw NB35416-040 M16×40 2
62 Hexagon Socket Head Cap Screw NB35416-090 M16×90 6
63 O-ring PA12-190 JIS B 2401 G190 1
64 Unloader Piston CS06400-250D 250*** 1
65 O-ring PA11-155 JISB2401 1A P155 1
66 Teflon Cap Seal CS06600-250 SUNR-BE-155 1
67 Push Rod, Unloader Slide Valve CS06700-250VD 250V** 1
67 Push Rod, Unloader Slide Valve CS06700-250VLLD 250VLL* 1 (VLLD)
68 Guide Pin NE2505-012 Φ5×12 1
69 Lock Nut NG31-008 AN08 1
70 Lock Washer NG32-008 AW08 1
73 O-ring PA12-035 JIS B 2401 G35 1
74 Unloader Cover CS07400-250 250*** 1
75 O-ring PA12-170 JIS B 2401 G170 1
2201Q2JE-HO-S6-N_2015.06.
Chapter 7 Related Documents
SCV-series Screw Compressor 7.2 Parts Configuration Table 250V**
7-16
P/N Part Name Code No. Remarks Q’ty.
76 Hexagon Socket Head Cap Screw NB35412-030 M12×30 8
77 Indicator Cam CS07700-250VXS 250VS* 1 (VS*)
77 Indicator Cam CS07700-250VXML 250VL*/VM*
1 (VM*)
1 (VL*)
1(VLLD)
78 Ball Bearing CS07800-200 #6000 1
79 Snap Ring (External) NG12-010 S10 1
80 Bearing Gland CS08000-200 200V** 1
81 Hexagon Socket Head Cap Screw NB35406-015 M6×15 3
82 V-ring CS08200-200B 20×10×12 1
83 Spring CS08300-200 200V** 1
84 Retainer, Indicator Cam Spring CS08400-200 200*** 1
91 Shaft Key CS09100-250 250*** 1
92 Suction Flange without hole CS71400-P250 MYK250A Male 1
92 Suction Flange with hole CS71400-250MK MYK250A Male 1
93 Gasket, Suction Flange CS09300-250N MYK250A 1
94 Hexagon Head Bolt NB12024-065 M24×65 12
95 Discharge Flange without hole CS71400-P150CD MYK150CD Male 1 (*UD)
95 Discharge Flange with hole CS71400-150CDMK MYK150CD Male 1 (*UD)
95 Discharge Flange without hole - MYK150A Female 1 (*UD)
95 Discharge Flange with hole CR74100-150 MYK150A Female 1 (*UD)
95 Discharge Flange without hole CS71400-P150 MYK150A Male 1 (*G)
95 Discharge Flange with hole CR74000-150 MYK150A Male 1 (*G)
96
Gasket, Discharge Flange (for the case V*G
model or V*D model used No.235) CR72000-150N MYK150A 1
97
Hexagon Head Bolt (for the case that is not
using No.235 Discharge flange spacer) NB12022-055 M22×55 8
97
Hexagon Head Bolt (for the case using
No.235 Discharge flange spacer) NB12022-085 M22×85 8
100 Mechanical Seal Assembly CS10000-250BE BOS-E1 1
100 Mechanical Seal Assembly CS10002-250EBS BBS-E 1
120 Unloader Indicator Assembly CS12000-VXF V-series 0-100% 1
125 Micro-Switch CS12500-200 200*** Z15GW 2
127 Micro-Switch Cam CS1279-200V 200VS\L 1
129 Wire wound type Potentiometer CS1299-E10 with lead wire 1
129 Conductive Plastic type Potentiometer CS12919-E10 with lead wire -
137 Indicator Dial CS13700-200VD 200V** L,M,H-port 1
137 Indicator Dial CS13700-200VD 250VLL* 1 (VLLD)
215
Flange, Lubricating Oil inlet (Journal)
with hole CR74000-025 MYK25A Male 1
216 Gasket, Lubricating Oil inlet Flange CR72000-025N MYK25A 1
217 Hexagon Head Bolt NB111012-035 M12×35 4
235 Spacer, Discharge Flange
(This spacer is not necessary for CD flange.) FX101-250 250*** 1(V*D)
236 Gasket, Discharge Flange Spacer CS23600-250N 250*** 1(V*D)
237 Torsional Slip Washer CS23700-250 250*** 2
250 Thrust Washer CS25000-250 250*** 2
251 Electromizer (Economizer) Flange without
hole CS71400-050 MYK50A Male 1
2201Q2JE-HO-S6-N_2015.06.
Chapter 7 Related Documents
SCV-series Screw Compressor 7.2 Parts Configuration Table 250V**
7-17
P/N Part Name Code No. Remarks Q’ty.
251 Electromizer (Economizer) Flange with hole CR74000-050 MYK50A Male 1
252 Gasket. Electromizer (Economizer) Flange CR72000-050N MYK50A 1
253 Hexagon Head Bolt NB111016-045 M16×45 4
254 Liquid Injection Flange with hole CR74000-032 MYK32A Male 1
255 Gasket, Liquid Injection Flange CR72000-032N MYK32A 1
256 Hexagon Head Bolt NB111012-040 M12×40 4
267
Special Spring Washer, Hexagon Socket
Head Cap Screw ND330-10 M10 TYPE 5
289 Variable Vi auxiliary Slide Valve CS28900-250VSD 250VS* 1 (VS*)
289 Variable Vi auxiliary Slide Valve CS28900-250VMD 250VM* 1 (VM*)
289 Variable Vi auxiliary Slide Valve CS28900-250VLD 250VL* 1 (VL*)
289 Variable Vi auxiliary Slide Valve - 250VLL* 1 (VLLD)
325 O-ring PA11-046 JIS B 2401 P46 2
326 O-ring Gland CS32600-250VD 250V** 1
420 Spacer, Unloader Positioning CS42000-250VSD 250VS* 1 (VS*)
420 Spacer, Unloader Positioning CS42000-250VMD 250VM* 1 (VM*)
421 O-ring PA11-046 JIS B 2401 P46 2 (VS*)
432 O-ring PA12-130 JIS B 2401 G130 4
433 O-ring PA12-130 JIS B 2401 G130 4
444 Vi Adjusting Rod CS44400-250VSD 250VS* 1 (VS*)
444 Vi Adjusting Rod CS44400-250VMD 250VM* 1 (VM*)
444 Vi Adjusting Rod CS44400-250VLD 250VL* 1 (VL*)
444 Vi Adjusting Rod CS44400-250VLL 250VLL* 1 (VLLD)
445
Lock Washer, Variable Vi Auxiliary Slide
Valve CS44500-250VD 200V** 1
446 Vi Square Washer, Teflon Bushing CS44600-250VD 250V*** 1
448 Teflon Bushing CS44800-250VD 250V** 1
449 Thrust Washer CS44900-250VD 250V** 2
450 O-ring PA11-040 JIS B 2401 P40 2
451 O-ring PA11-040 JIS B 2401 P40 1
452 Hexagon Socket Head Cap Screw NB35406-020 M6×20 1
453 Hexagon Nut NC720-36 M36 1
454 Hexagon Socket Head Cap Screw NB35406-035 M6×35 1
455
Special Spring Washer, Hexagon Socket
Head Cap Screw ND330-06 M6 1
456 Hexagon Socket Head Cap Screw NB35405-010 M5×12 4
458 1 Plug NFO6-015 R1/2 1
458 2 Plug NFO6-004 R1/8 2
458 3 Plug NFO6-008 R1/4 1
459 Plug NFO6-015 R1/2 1
522 Domed Cap Nut NC921-36 M36 1
523 O-ring PA11-040 JIS B 2401 P40 1
528 Oil Seal Sleeve CS52810-250VD 250V** 1
528 Oil Seal Sleeve with O-ring CS52809-250VD 250V** 1
529 Set screw NA83606-008 M6×8 2
533 Spring Washer, Hexagon Socket Head Cap
Screw ND330-06 M6 1
2201Q2JE-HO-S6-N_2015.06.
Chapter 7 Related Documents
SCV-series Screw Compressor 7.2 Parts Configuration Table 250V**
7-18
P/N Part Name Code No. Remarks Q’ty.
605 Plug NF06-025 R 1" 1
607 A Plug NF06-008 R1/4 1
607 B Plug NF06-008 R1/4 1
680 A Conical Spring Washer, Vi Adjusting Rod ND160-036 M36 1
680 B Conical Spring Washer, Vi Adjusting Rod ND160-036 M36 1
715 Cover Plate, Lubricating oil inlet Flange CS71500-025 25A 1
715 Cover Plate, Liquid injection Flange CS71500-032 32A 1
744 O-ring PA12-070 JIS B 2401 G70 1
 The part code of the O-ring is the one assigned to NBR which is standard material.
When the material of the O-ring is other than NBR, a different part code is used for
each material.
If you are using O-rings made from other than the standard material, please contact
MAYEKAWA when placing an order.
 The Code No. of parts shown in parentheses below is applied to the product until the
end of November, 2014:
(P/N 120 Unloader Indicator Assembly, P/N 125 Micro-Switch, P/N 129 Potentiometer)
 For the Code No. of new type indicator part, refer to the separately dedicated
Instruction manual for it.
The sizes of O-ring No.432-2 and No.432-2 have been changed to G130 from G135 in October 2012
.a s a design change.
2201Q2JE-HO-S6-N_2015.06.
Chapter 7 Related Documents
SCV-series Screw Compressor 7.2 Parts Configuration Table 320V*D
7-19
Table 7-4 Parts Configuration Table of 320V*D models
P/N Part Name Code No. Remarks Q’ty.
1 Main Rotor Casing CS00100-320VXS 320VS* 1(VSD)
1 Main Rotor Casing CS00100-320VXM 320VM* 1(VMD)
1 Main Rotor Casing CS00100-320VXL 320VL* 1(VLD)
2 Hexagon Socket Head Cap Screw NB35424-080 M24×80 52
3 Alignment Pin NE2025-080 Φ25×80 4
4 Eye Bolt NB600-30 M30 2
5 Suction Cover CS00500-320VXD 320V*D 1
6 Gasket, Suction Cover CS00600-320VD 320*** 1
7 Eye Bolt NB600-16 M16 2
8 Spring Pin NE3206-018 Φ6×18 2
9 O-ring PA11-058 JIS B 2401 P58 1
10 A Plug NF06-020 R3/4 1
10 B Plug NF06-015 R1/2 2
11 Bearing Head CS01100-320VXD 320V*D 1
12 Gasket, Bearing Head CS01200-320N 320*** 1
13 Eye Bolt NB600-16 M30
(from 2006.03.30) 1
14 Spring Pin NE3206-018 Φ6×18 2
15 Plug NF06-010 R 3/8 1
16 Bearing Cover CS01600-320VXD 320V*D 1
17 Gasket, Bearing Cove CS01700-320VD 320V*D 1
18 1 Hexagon Socket Head Cap Screw NB35420-070 M20×70 19
18 2 Hexagon Socket Head Cap Screw NB35420-120 M20×120 12
18 3 Hexagon Socket Head Cap Screw NB35420-120 M20×120 6
19 Alignment Pin NE2016-070 Φ16×70 2
20 Spring Pin NE3203-016 Φ3×16 1
21 Plug NF06-008 R1/4 1
22 Balance Piston Cover CS02200-320 320*** 1
23 Gasket, Balance Piston Cover CS02300-320N 320*** 1
24 Hexagon Socket Head Cap Screw NB35416-045 M16×45 11
25 Male Rotor
CS02500-320VS 320VS* 1(VSD)
25 Female Rotor
25 Male Rotor
CS02500-320VM 320VM* 1(VMD)
26 Female Rotor
25 Male Rotor
CS02500-320VL 320VL* 1(VLD)
26 Female Rotor
27 Main Bearing O-ring type CS0270-GRT 320*** 2
28 Side Bearing O-ring type CS0280-GRT 320*** 2
29 Snap Ring (Internal) NG11-200 H200 4
30 Balance Piston CS03000-320H 320**H 1
31 Key, Balance Piston CS03100-320 320*** 1
32 Snap Ring (External) NG12-100 S100 1
2201Q2JE-HO-S6-N_2015.06.
Chapter 7 Related Documents
SCV-series Screw Compressor 7.2 Parts Configuration Table 320V*D
7-20
P/N Part Name Code No. Remarks Q’ty.
33 Sleeve, Balance Piston CS03300-320H 320**H 1
34 Spring Pin NE3206-014 Φ6×14 1
35 O-ring PA12-190 JIS B 2401 G190 1
36 O-ring Spacer CS03600-320 320*** 1
37 Snap Ring (Internal) NG11-200 H200 2
38 Thrust Bearing CS03800-320 320*** 2
39 Lock Nut NG31-021 AN21 2
40 Lock Washer NG32-021 AW21 2
42 Spacer, Thrust Bearing Alignment CS04200-320 320*** 2
43 Thrust Bearing Gland CS04300-320 320*** 2
45 Hexagon Head Bolt NB15520-055 M20×55 8
46 Conical Spring Washer ND150-020 M20 1L 8
46 Lock Washer Set (old, plate type) CS0469-G 320*** 8p./set -
48 Retainer, Oil Seal CS04800-320VDS 320*** 1
48 Retainer, Oil Seal CS04800-320P 320*** with Seal pot 1
49 O-ring PA12-160 JIS B 2401 G160 1
50 Oil Seal CS05010-320VD SA1J 95×120×13 1
51 Seal Cover CS051000-320BBS 320*** BBS, BOS 1
52 Gasket, Seal Cover CS05200-320N 320*** 1
53 Hexagon Socket Head Cap Screw NB35416-040 M16×40 8
54 Unloader Slide Valve CS05400-320VSD 320VS* 1(VSD)
54 Unloader Slide Valve CS05400-320VMD 320VM* 1(VMD)
54 Unloader Slide Valve CS05400-320VLD 320VL* 1(VLD)
58 Hexagon Socket Head Cap Screw NB35412-055 M12×55 5
60 Unloader Cylinder CS06000-320V 320V*D 1
61 Hexagon Socket Head Cap Screw NB35420-050 M20×50 2
62 Hexagon Socket Head Cap Screw NB35420-110 M20×110 6
63 O-ring PA12-240 JIS B 2401 G240 1
64 Unloader Piston CS06400-320U 320*** 1
65 O-ring PA11-200 JIS B 2401 P200 1
66 Teflon Cap Seal CS06600-320 CAP-3BE200 1
67 Push Rod, Unloader Slide Valve CS0671-GV 320V*D 1
68 Guide Pin NE2506-016 Φ6×16 1
69 Lock Nut NG31-010 AN10 1
70 Lock Washer NG32-010 AW10 1
73 O-ring PA11-044 JIS B 2401 P44 1
74 Unloader Cover CS07400-320 320*** 1
75 O-ring PA12-210 JIS B 2401 G210 1
76 Hexagon Socket Head Cap Screw NB35416-040 M16×40 8
77 Indicator Cam CS07700-320VS 320VS* 1(VSD)
77 Indicator Cam CS07700-320VM 320VM* 320VL* 1(VMD)
1(VLD)
78 Ball Bearing CS07800-200 #6000 1
2201Q2JE-HO-S6-N_2015.06.
Chapter 7 Related Documents
SCV-series Screw Compressor 7.2 Parts Configuration Table 320V*D
7-21
P/N Part Name Code No. Remarks Q’ty.
79 Snap Ring (External) NG12-010 S10 1
80 Bearing Gland CS08000-200 200V** 1
81 Hexagon Socket Head Cap Screw NB35406-015 M6×15 3
82 V-ring CS08200-200B 20×10×12 VH10
NBR 1
83 Spring CS08300-200 200V** 1
84 Retainer, Indicator Cam Spring CS08400-200 200*** 1
91 Shaft Key CS09100-320 320*** 1
92 Suction Flange CS71400-P350 MYK350A 1
93 Gasket, Suction Flange CS09300-320N MYK350A 1
94 Hexagon Head Bolt NB12024-075 M24×75 16
95 Discharge Flange CS71400-P200 MYK200A 1
95 Discharge Flange CS71400-P200CD MYK200CD 1
96
Gasket, Discharge Flange (for the case V*G
model or V*D model used No.235) CR72000-200N MYK200A 1
97
Hexagon Head Bolt (for the case that is not
using No.235 Discharge flange spacer) NB12020-055 M20×55 12
97
Hexagon Head Bolt (for the case using
No.235 Discharge flange spacer) NB12020-085 M20×85 12
100 Mechanical Seal Assembly CS10000-320BE BOS-E1 -
100 Mechanical Seal Assembly CS10002-320EBS BBS-E 1
120 Unloader Indicator Assembly CS12000-200VXF 200V** 0-100% 1
125 Micro-Switch CS12500-200 200*** Z15GW 2
127 Micro-Switch Cam CS1279-200V 200VS\L 1
129 Wire wound type Potentiometer CS1299-E10 with Wires 1
129 Conductive Plastic type Potentiometer CS12919-E10 with Wires -
137 Indicator Dial CS13700-320VD 320V*D 1
150 O-ring PA12-220 JIS B 2401 G220 2
166 Hexagon Socket Head Cap Screw NB35405-010 M5×10 4
215
Flange, Lubricating Oil inlet (Journal)
without hole CS71400-040 MYK40A 1
216 Gasket, Lubricating Oil inlet Flange CR72000-040N MYK40A 1
217 Hexagon Head Bolt NB14012-040 M12×40 4
218 Flange, Oil Injection with hole CR74000-025 MYK25A 1
219 Gasket, Oil Injection Flange CR72000-025N MYK25A 1
220 Hexagon Head Bolt NB14012-035 M12×35 4
235 Spacer, Discharge Flange
(This spacer is not necessary for CD flange.) - 320*** 1
236 Gasket, Discharge Flange Spacer CS23600-320N 320*** 1
237 Torsional Slip Washer CS23700-320 125～400 2
250 Thrust Washer CS25000-320 320*** 2
251
Electromizer (Economizer) Flange without
hole CS71400-080 MYK80A Male 1
251 Electromizer (Economizer) Flange with hole CR74000-080 MYK80A Male 1
252 Gasket. Electromizer (Economizer) Flange CR72000-080N MYK80A 1
253 Hexagon Head Bolt NB15520-055 M20×55 4
254 Liquid Injection Flange without hole CS71400-050 MYK50A Male 1
2201Q2JE-HO-S6-N_2015.06.
Chapter 7 Related Documents
SCV-series Screw Compressor 7.2 Parts Configuration Table 320V*D
7-22
P/N Part Name Code No. Remarks Q’ty.
254 Liquid Injection Flange with hole CR74000-050 MYK50A Male -
255 Gasket, Liquid Injection Flange CR72000-050N MYK50A 1
256 Hexagon Head Bolt NB15516-045 M16×45 4
267
Special Spring Washer, Hexagon Socket
Head Cap Screw ND330-12 M12 5
289 Variable Vi auxiliary Slide Valve CS28900-320VSD 320VS* 1(VSD)
289 Variable Vi auxiliary Slide Valve CS28900-320VMD 320VM* 1(VMD)
289 Variable Vi auxiliary Slide Valve CS28900-320VLD 320VL* 1(VLD)
326 O-ring Gland CS32600-320 320*** 1
420 Spacer, Unloader Positioning CS42000-320VSD 320VS* 1(VSD)
420 Spacer, Unloader Positioning CS42000-320VMD 320VM* 1(VMD)
420 Spacer, Unloader Positioning CS42000-320VLD 320VL* 1(VLD)
421 O-ring PA11-058 JIS B 2401 P58 2
432 O-ring PA12-165 JIS B 2401 G165 4
433 O-ring PA12-165 JIS B 2401 G165 4
444 Vi Adjusting Rod CS44400-320VSD 320VS* 1(VSD)
444 Vi Adjusting Rod CS44400-320VMD 320VM* 1(VMD)
444 Vi Adjusting Rod CS44400-320VLD 320VL* 1(VLD)
446 Vi Square Washer, Teflon Bushing CS44600-250VD 250V*** 1
448 Teflon Bushing CS44800-320VD 320V*D 1
449 Thrust Washer CS44900-320VD 200V** 2
450 O-ring PA11-044 JIS B 2401 P44 2
451 O-ring PA11-050A JIS B 2401 P50A 1
452 Hexagon Socket Head Cap Screw NB35406-020 M6×20 1
453 Hexagon Nut NC140-36 M36 1
458 1 Plug NF06-015 R1/2 1
458 2 Plug NF06-004 R1/8 2
458 3 Plug NF06-008 R1/4 1
459 Plug NF06-015 R1/2 1
522 Domed Cap Nut NC921-36 M36 1
523 O-ring PA11-050A JIS B 2401 P50A 1
528 Oil Seal Sleeve CS52810-320VD 320*** 1
528 Oil Seal Sleeve with O-ring CS52809-320VD 320*** 1
529 Set screw NA83606-010 M6×8 2
533
Spring Washer, Hexagon Socket Head Cap
Screw ND330-06 M6 1
599 Guide Pin NE3206-016 Φ6×16 1
600 Retainer, Vi adjusting Rod CS60000-320VD 320V*D 1
601 Flange, Lubricating Oil inlet (F Rotor side) CR74000-020 MYK20A 1
602
Gasket, Lubricating Oil inlet (F Rotor side)
Flange CR72000-020N MYK20A 1
603 Hexagon Head Bolt NB14012-035 M12×35 2
604 Vi Adjusting Rod Washer ND160-036 JIS B 1256 36 1
605 Plug NF06-032 R1 1/4 1
607 A Plug NF06-004 R1/4 1
2201Q2JE-HO-S6-N_2015.06.
Chapter 7 Related Documents
SCV-series Screw Compressor 7.2 Parts Configuration Table 320V*D
7-23
P/N Part Name Code No. Remarks Q’ty.
607 B Plug NF06-004 R1/4 1
680 A Conical Spring Washer, Vi Adjusting Rod ND160-036 M36 1
680 B Conical Spring Washer, Vi Adjusting Rod ND160-036 M36 1
715 Cover Plate, Liquid injection Flange CS71500-025 MYK25A 1
744 O-ring PA12-090 JIS B 2401 G90 1
 The part code of the O-ring is the one assigned to NBR which is standard material.
When the material of the O-ring is other than NBR, a different part code is used for
each material.
If you are using O-rings made from other than the standard material, please contact
MAYEKAWA when placing an order.
 The Code No. of parts shown in parentheses below is applied to the product until the
end of November, 2014:
(P/N 120 Unloader Indicator Assembly, P/N 125 Micro-Switch, P/N 129 Potentiometer)
 For the Code No. of new type indicator part, refer to the separately dedicated
Instruction manual for it.
2201Q2JE-HO-S6-N_2015.06.
Chapter 7 Related Documents
SCV-series Screw Compressor 7.3 Tightening Torques for Bolts and Nuts
7-24
7.3 Tightening Torques for Bolts and Nuts
7.3.1 Hexagon Head Bolts
Table 7-5 Hexagon Head Bolts Used and Each Tightening Torque
P/N Tightening Location
Nominal Designation x Length mm (Qty)
Tightening Torque N･m
160V 200V 250V 320V
45 Thrust Bearing Gland
M10x30 (8)
40
M12x35 (8)
50
M16x45 (8)
60
M20x55 (8)
120
94 Suction Flange
M20x55 (8)
140
M22x55 (8)
160
M24x65 (12)
200
M24x75 (16)
200
97
Discharge
Flange
CD
type
Sideways
discharge
M22x55 (4)
160
M20x55 (8)
140
M22x55 (8)
160
M20x55 (12)
140
A
type
Sideways
discharge
M22x80 (4)
240
M20x80 (8)
140
M22x85 (8)
160
M20x85 (12)
140
Downward
discharge
M22x55 (4)
160
M20x55 (8)
140
M22x55 (8)
160 ―
217 Lubricating Oil inlet Flange ―
M12x35 (2)
40
M12x35 (4)
40
M12x40 (4)
40
218 Oil Injection inlet Flange ― ― ―
M12x40 (4)
40
253 Economizer inlet Flange
M12x35 (4)
40
M12x40 (4)
40
M16x45 (4)
110
M20x55 (4)
140
256 Liquid Injection inlet 1 Flange
M12x35 (2)
40
M12x35 (4)
40
M12x40 (4)
40
M16x45 (4)
110
603 Lubricating Oil inlet
(F Rotor side) Flange ― ― ―
M12x35 (2)
40