Page 332 - Reciprocating Compressors Operation Maintenance
P. 332
Troubleshooting Compressor Problems 317
Intercooler Safety Valve Blows When Compressor is Loaded—
Second Stage Not Operating
1. Broken high pressure suction or discharge valve
2, High pressure unloader piston stuck
TROUBLESHOOTING LUBRICATION SYSTEMS
The following lists will help identify the cause of some of the more
common compressor lubricating oil systems problems.
Frame Oil System
Low Oil Pressure
1. Low oil level
2. Dirty filter strainer
3. Defective pump or relief valve
4. Relief valve on header faulty
5. Worn bearings or excessive clearance
6. Low oil viscosity
7. High oil temperature
High Oil Pressure
1. Relief valve in header faulty
2. Restriction in oil line
3. Improper grade of oil
4. Cold oil
5. Pressure regulating valve set too high
Excessive Oil Consumption
1. Oil level too high in crankcase
2. Oil is too light
3. The oil pressure may be too high
4. Piston rings and cylinder are worn
