5HP 80 gallon 1 Stage Single Phase 3 Cylinder Air Compressor –HP05V080Y1
7/18/2011
7
Maintenance-Trouble Shooting-Repairs
SLOW PUMPING OR INSUFFICIENT PRESSURE CAN BE CAUSED BY:
Clogged inlet filter (disassemble and clean thoroughly).
Leaks in air lines, valves, fittings, etc. (Locate by using soapy water if necessary; replace
or tighten threaded parts).
Compressor too small for equipment application. Check air requirements vs. compressor
capacity and consult dealer.
Leaking head valves (remove hold-down covers than remove valves for inspection.
Repair or replace faulty valves).
If the power network in the building is 208 volts, order a 208 volt motor. If the starting
voltage is much less the 90% of the motor nameplate voltage, the motor cannot be
expected to start and the interior building wiring must be corrected.
OVERHEATING
Compression of air generates heat, much of which is dissipated as air passes over the
intercooler and/or after cooler. Overheating can be caused by:
Pump running backwards (reverse direction). Proper rotation is counter-
clockwise when facing the flywheel.
One or more head valves are failing to seat properly.
Blown cylinder head gasket.
Restriction in head, intercooler, or check valve.
Lack of oil (check oil level).
Dirt in intercooler fins or cylinder fins-(blow out with air).
Poor ventilation and ambient temperature is too high where the compressor is
stored.
