Emerson VSSG Section Number, Operation, Maintenance/Service, Troubleshooting, Table of Contents

Table of Contents
Section Title	Section Number
Section 4 • Operation
Oil Inspection	4-1
Dual Oil Filters	4-1
Control System Calibration	4-2
Starting, Stopping and Restarting the Compressor	4-2
Calibrate Slide Valve Actualors	4-2
Oil Temperature Control Valve (Oil Mixing Valve) Operation	4-7
Manual Override	4-8
Purging with Dry Nitrogen	4-9
Purging with Dry Gas	4-11
Coalescing Oil Return Line Setup	4-14
Section 5 • Maintenance/Service
Maintenance and Service Schedule	5-1
Maintaining Proper Operation	5-2
Compressor Unit Isolation for Maintenance/Service	5-3
Compressor Unit Leak Check	5-3
Oil System Components	5-4
Oil Sampling	5-4
Oil Charging	5-5
Oil Draining	5-6
Oil Filter Replacement	5-6
Coalescing Oil Filter Replacment	5-8
Oil Pump Strainer	5-9
Drive Coupling (Form-Flex BPU) Installation	5-10
Drive Center Member (Form-Flex BPU) Installation and Alignment	5-11
Drive Coupling (Form-Flex BPU) Removal	5-13
Drive Coupling (Type C Sure-Flex) Replacement	5-13
Compressor Replacement	5-14
Compressor Bearing Float Inspections	5-16
Gate Rotor Float and Gate Rotor Bearing Float Inspection	5-17
Gate Rotor and Support Clearance	5-19
Gate Rotor Assembly Replacement (All VSG & VSSG Compressors Except VSG 301-701 Compressors).... 5-21
Gate Rotor Assembly Replacement (VSG 301-701 Compressors ONLY)	5-24
Gate Rotor Disassembly	5-26
Gate Rotor Blade Removal/Installation	5-26
Gate Rotor Thrust Bearing Removal/Installation	5-27
Gate Rotor Roller Bearing Removal/Installation	5-27
Slide Valve Actuator Assembly Replacement	5-28
Command Shaft Assembly Replacement	5-29
Command Shaft Seal Replacement	5-29
Section 6 • Troubleshooting
Table 6-1. Slide Valve Actuator Troubleshooting Guide	6-1
Table 6-2. Slide Valve Actuator LED Blink Codes	6-3
Table 6-3. Troubleshooting Guide - General Problems & Solutions	6-5

TOC - 2 VSG/VSSG • Installation, Operation and Maintenance Manual •Vilter/Emerson • 35391SSG