Emerson VILTER VSS Installation, Operation And Service Manual page 9

Section Title
Gaterotor Assembly Replacement (VSM 301-701 Compressors Only) ....................................................... 5-24
Removal ....................................................................................................................................... 5-24
Installation ................................................................................................................................... 5-24
Gaterotor Assembly Replacement (VSM 97-127 Compressors Only) ......................................................... 5-26
Removal ....................................................................................................................................... 5-26
Installation ................................................................................................................................... 5-26
Gaterotor Disassembly (All Compressors Except VSM 97-127 Compressors) ............................................. 5-28
Gaterotor Blade Removal .............................................................................................................. 5-28
Gaterotor Blade Installation .......................................................................................................... 5-29
Gaterotor Thrust Bearing Removal ................................................................................................ 5-29
Gaterotor Thrust Bearing Installation ............................................................................................ 5-29
Gaterotor Roller Bearing Removal ................................................................................................. 5-30
Gaterotor Roller Bearing Installation ............................................................................................. 5-30
Gaterotor Disassembly (VSM 97-127 Compressors Only) ......................................................................... 5-31
Gaterotor Blade Removal .............................................................................................................. 5-31
Gaterotor Blade Installation .......................................................................................................... 5-31
Gaterotor Thrust Bearing Removal ................................................................................................ 5-32
Gaterotor Thrust Bearing Installation ............................................................................................ 5-32
Gaterotor Roller Bearing Removal ................................................................................................. 5-32
Gaterotor Roller Bearing Installation ............................................................................................. 5-32
Compressor Shaft Seal Replacement ........................................................................................................ 5-33
Shaft Seal Assembly ..................................................................................................................... 5-33
Handling Seal Face with Care ........................................................................................................ 5-33
Compressor Shaft Seal Replacement - For VSS/VSM Units ............................................................. 5-34
Tools ................................................................................................................................ 5-34
Removal ........................................................................................................................... 5-34
Installation ....................................................................................................................... 5-34
Compressor Shaft Seal Replacement - For VSH/VSSH Units ........................................................... 5-36
Shaft Seal Removal Shaft Seal Removal - For Part# 25985Y and 25985YA .......................... 5-36
Shaft Seal Removal Shaft Seal Removal - For Part# 28985W and 28985WA ....................... 5-37
Prior to Shaft Seal Installation ........................................................................................... 5-38
Shaft Seal Installation - For Part# 25985Y and 25985Y ...................................................... 5-39
Shaft Seal Installation - For Part# 28985W and 28985WA ................................................. 5-40
Slide Valve Actuator Assembly Replacement ............................................................................................ 5-41
Removal ....................................................................................................................................... 5-41
Installation ................................................................................................................................... 5-41
Actuator Installation Using Anti-Rotation Bolts ............................................................................. 5-42
Slide Valve Command Shaft Assembly Replacement ................................................................................. 5-43
Removal ....................................................................................................................................... 5-43
Installation ................................................................................................................................... 5-43
Liquid Injection Control Valve Station (Danfoss ICF 20-40 Valve Station) ................................................... 5-44
Main Rotor Assembly ............................................................................................................................... 5-46
Torque Specifications ............................................................................................................................... 5-46
Using A Torque Wrench Correctly ............................................................................................................. 5-47
Nord-Lock Washers ................................................................................................................................ 5-47
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Slide Valve Actuator Troubleshooting Guide ............................................................................................... 6-1
Slide Valve Actuator LED Blink Codes .......................................................................................................... 6-4
Troubleshooting Guide - General Problems & Solutions .............................................................................. 6-6
VSS/VSR/VSM/VSH/VSSH Compressor • Installation, Operation and Service Manual • Emerson • 35391S
Table of Contents
Section 6 • Troubleshooting
Page Number
TOC − 3