Quincy Compressor QGS 40, Instruction Book

Page: 83 / 102

- Condition Fault Remedy
Compressor air output or pressure
below normal Air consumption exceeds air
delivery of compressor Check equipment connected
Choked air filter element Replace filter element
Solenoid valve malfunctioning Replace valve
Leak in control air flexibles Replace leaking flexibles
Inlet valve does not fully open Have valve checked
Oil separator clogged Have element replaced
Air leakage Have leaks repaired
Safety valve leaking Have valve replaced
Compressor element out of order Consult your supplier
- Condition Fault Remedy
Excessive oil consumption; oil
carry-over through discharge line Oil level too high Check for overfilling. Release
pressure and drain oil to
correct level
Incorrect oil causing foam Change to correct oil
Oil separator defective Have element checked.
Replace if necessary.
Scavenge line clogged Check and remedy
- Condition Fault Remedy
Excessive oil flow through air inlet
filter after stopping compressor Check valve leaking or oil stop
valve jammed Replace defective parts.
Replace air filter element
- Condition Fault Remedy
Safety valve blows after loading Inlet valve malfunctioning Have valve checked
Minimum pressure valve
malfunctioning Have valve checked
Safety valve out of order Have valve replaced
Compressor element out of order Consult your supplier
Oil separator element clogged Have element replaced
- Condition Fault Remedy
Compressor element outlet
temperature or delivery air
temperature above normal Oil level too low Check and correct
On air-cooled compressors,
insufficient cooling air or cooling
air temperature too high Check for cooling air restriction
or improve ventilation of the
compressor room. Avoid
circulation of cooling air. If
installed, check capacity of
compressor room fan
Oil cooler clogged Clean cooler
Instruction book
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