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2202B0JE-DA-J-N_2012.01.

Table of Contents

Screw Compressor J-series

xiii

5.3.2 Replacement

Interval

for Refrigerant Oil ........................................................ 5-17

5.4 Disassembly and Assembly of the Compressor..................................... 5-18

5.4.1 Preparation

for

Disassembly .......................................................................... 5-18

5.4.2 Common

Work Items ...................................................................................... 5-20

5.4.3 Vi

Position Sensor .......................................................................................... 5-22

5.4.3.1 Precautions

for Removal ........................................................................... 5-23

5.4.3.2 Precautions

for Installation ........................................................................ 5-23

5.4.4 Seal

Cover ...................................................................................................... 5-24

5.4.4.1 Precautions

for Removal ........................................................................... 5-26

5.4.4.2 Precautions

for Installation ........................................................................ 5-26

5.4.5 Bearing

Cover................................................................................................. 5-28

5.4.5.1 Precautions

for Removal ........................................................................... 5-29

5.4.5.2 Precautions

for Installation ........................................................................ 5-30

5.4.6 Unloader

Indicator/Capacity Control Solenoid Valve ..................................... 5-32

5.4.6.1 Precautions

for Removal ........................................................................... 5-34

5.4.6.2 Precautions

for Installation ........................................................................ 5-34

5.4.7 Unloader

Cover............................................................................................... 5-35

5.4.7.1 Precautions

for Removal ........................................................................... 5-37

5.4.7.2 Precautions

for Installation ........................................................................ 5-38

5.4.8 Unloader

Cylinder ........................................................................................... 5-40

5.4.8.1 Precautions

for Removal ........................................................................... 5-41

5.4.8.2 Precautions

for Installation ........................................................................ 5-41

5.4.9 Vi

Cylinder ...................................................................................................... 5-43

5.4.9.1 Precautions

for Removal ........................................................................... 5-45

5.4.9.2 Precautions

for Installation ........................................................................ 5-45

5.4.10 Balance

Piston Cover ..................................................................................... 5-46

5.4.10.1 Precautions for Removal ........................................................................... 5-46
5.4.10.2 Precautions for Installation ........................................................................ 5-47

5.4.11 Suction Cover ................................................................................................. 5-48

5.4.11.1 Preparation for Suction Adapter Removal ................................................. 5-50
5.4.11.2 Precautions for Removal ........................................................................... 5-50
5.4.11.3 Precautions for Installation ........................................................................ 5-50

5.4.12 Bearing Head.................................................................................................. 5-52

5.4.12.1 Precautions for Removal ........................................................................... 5-53
5.4.12.2 Precautions for Installation ........................................................................ 5-54

5.4.13

Separation of Suction Cover and Main Rotor Casing..................................... 5-56

5.4.13.1 Precautions for Removal ........................................................................... 5-57
5.4.13.2 Precautions for Installation ........................................................................ 5-57

5.4.14 Suction Cover ................................................................................................. 5-58

5.4.14.1 Precautions for Removal ........................................................................... 5-58
5.4.14.2 Precautions for Installation ........................................................................ 5-59

5.4.15 Rotor ............................................................................................................... 5-60

5.4.15.1 Precautions for Removal ........................................................................... 5-61
5.4.15.2 Precautions for Installation ........................................................................ 5-62

5.4.16 Separation

from Bearing Head ....................................................................... 5-64

5.4.16.1 Precautions for Removal ........................................................................... 5-64
5.4.16.2 Lifting of Bearing Head .............................................................................. 5-64
5.4.16.3 Lifting of Main Rotor Casing ...................................................................... 5-65