Filter
Top Products
TOC - 2
VSG/VSSG • Installation, Operation and Maintenance Manual •Vilter/Emerson • 35391SSG
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
Table of Contents
Section Title Section Number