Quincy QSV 2200, Instruction Manual

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Section VIII – Problem solving
Quincy Vacuum Pump-QSV Series 97
Condition Fault Remedy
The pump cannot reach stated
vacuum
Air consumption exceeds air
delivery of vacuum pump
Check equipment connected
Clogged air filter element Replace the filter
Too high pressure drop between
process and pump inlet Check the process lines for correct size
and for leakage. Correct if necessary
Low oil level Top up oil
Oil contaminated Replace oil
Solenoid valve malfunctioning Replace valve
Vacuum pump element out of
order
Consult Quincy
Air leakage Check the process lines for leakage
Pressure switch trips
Oil separator elements clogged Have elements replaced
Oil filter clogged Have oil filter replaced
Discharge clogged Check couplings and outlet
Bypass valve or oil injection
system clogged
Have bypass valve cleaned or replaced.
Pressure switch out of order Replace pressure switch
Vacuum pump element outlet
temperature above normal
Oil level too low
Check and correct, see Operation
instructions / During operation
Insufficient cooling air or cooling
air temperature or relative
humidity is too high
Check for cooling air restriction or improve
ventilation of the vacuum pump room.
Avoid recirculating of cooling air. If
installed, check capacity of vacuum pump
room fan
Oil cooler clogged Clean cooler
Oil filter clogged Replace oil filter
Scavenge line clogged Clean scavenge line
Electronic thermostatic valve
malfunctioning
Have valve tested
Degraded oil
Check service intervals, see Preventive
maintenance schedule
Temperature of pressure air too
high
Check process air temperature
Vacuum pump element out of
order
Consult Quincy
Converter fault codes
If a problem is detected by the converter, a specific code (Main motor converter alarm) will appear on the
graphic regulator display, together with a fault code.