mycom 1612LSC series

2202L5JE-DA-C5-N_2015.05.
Table of Contents
Compound 2-stage Screw Compressor 1612LSC Speed Increaser Type
viii
5.4.10.1 Disassembly .............................................................................................. 5-29
5.4.10.2 Inspection .................................................................................................. 5-30
5.4.11 High-stage Suction Cover and Side Bearings ................................................... 5-31
5.4.11.1 Disassembly .............................................................................................. 5-31
5.4.11.2 Inspection .................................................................................................. 5-31
5.4.12 Low-stage Suction Cover and Side Bearings .................................................... 5-32
5.4.12.1 Disassembly .............................................................................................. 5-32
5.4.12.2 Inspection .................................................................................................. 5-33
5.4.13 Thrust Bearings Block ........................................................................................ 5-34
5.4.13.1 Disassembly of High-stage Thrust Bearing block ...................................... 5-34
5.4.13.2 Disassembly of Low-stage Thrust Bearing block ...................................... 5-35
5.4.13.3 Inspection (High-stage/Low-stage) ............................................................ 5-36
5.4.14 High-stage Rotors and Main Rotor Casing ........................................................ 5-37
5.4.14.1 Disassembly .............................................................................................. 5-37
5.4.14.2 Inspection .................................................................................................. 5-37
5.4.15 Low-stage Rotors and Main Rotor Casing ......................................................... 5-38
5.4.16 High-stage Bearing Head and Main Bearings ................................................... 5-39
5.4.16.1 Disassembly .............................................................................................. 5-39
5.4.16.2 Inspection .................................................................................................. 5-39
5.4.17 Low-stage Bearing Head and Main Bearings .................................................... 5-40
5.4.17.1 Disassembly .............................................................................................. 5-40
5.4.17.2 Inspection .................................................................................................. 5-40
5.4.18 Low-stage Unloader Slide Valve and Guide Block ............................................ 5-41
5.4.18.1 Disassembly .............................................................................................. 5-41
5.4.18.2 Inspection .................................................................................................. 5-41
5.5 Reassembly ................................................................................................ 5-42
5.5.1 Low-stage Unloader Slide Valve and Guide Block ............................................ 5-44
5.5.2 Bearing Head and Rotor Casing ........................................................................ 5-45
5.5.3 Bearing Head and Main Bearings ...................................................................... 5-46
5.5.4 Rotor Assembly ................................................................................................. 5-47
5.5.5 Suction Cover and Side Bearings ...................................................................... 5-48
5.5.6 Thrust Bearing Block (
....................................................................................... 5-50
5.5.6.1 End Clearance Measurement .................................................................... 5-52
5.5.6.2 End Clearance Adjustment Method ........................................................... 5-54
5.5.6.3 Tightening after End Clearance Adjustment ............................................. 5-54
5.5.7 Combining High-stage and Low-stage Blocks ................................................... 5-55
5.5.8 Balance Piston Cover ........................................................................................ 5-57
5.5.9 Speed Increaser Gear Block.............................................................................. 5-58
5.5.10 Installation of Speed Increaser Gear Casing to Low-stage Bearing Head ........ 5-61
5.5.11 Unloader Cylinder and Unloader Piston ............................................................ 5-63
5.5.12 Unloader Cover .................................................................................................. 5-65
5.5.13 Shaft Seal Block ................................................................................................ 5-66
5.5.14 Unloader Indicator ............................................................................................. 5-69
5.5.14.1 Potentiometer ............................................................................................ 5-70
5.5.14.2 Micro-switch ............................................................................................... 5-70
5.5.14.3 Assembly and Adjustment ......................................................................... 5-71