Product Manual

PROBLEM POSSIBLE CAUSE CORRECTIVE ACTION
Motor stalls Faulty unloader / check valve Replace unloader check valve
Valves incorrectly installed Install valves correctly
Excessive Loose compressor, motor Tighten components
Vibration Excessive discharge pressure Reduce operating pressure
Leg bolts tightened too Loosen leg bolts
tightly to floor
Worn rods, wrist pin or main Check and replace worn parts
bearings
Compressor Compressor valves loose or Check and replace worn or
Knocks broken broken valves
Inspect check valve, it may Remove and clean check
knock at low pressures valve
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TROUBLE SHOOTING