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16 Stationary Electric Air Compressor Manual
Air continues to leak at Motor/
Pressure Switch while motor is
running.
Defective Motor/Pressure Switch.
Replace.
Air leaks from Safety Relief
Valve.
Possible defective Safety Relief
Valve.
Excessive air tank pressure.
Operate Safety Relief Valve manually
by pulling on ring. If it still leaks, it
should be replaced.
Replace Motor/Pressure Switch.
Clean, reset or replace Pilot Valve.
Air leaks at pump.
Defective gaskets.
Torque head bolts to 19.5 ft./lbs.
for Single Stage & 33.2 for
2 stage.
Air leaks at connections. Allow the air compressor to build
pressure to the maximum allowed.
Turn off and brush a soapy wa-
ter solution onto all connections.
Check connections for air bubbles.
Tighten the connections where
leaks are present.
Remove, clean or replace.
Air tank must be replaced. Do not
attempt to repair air tank!
Insufcient pressure at air tool
or accessory.
Air leaks or restrictions.
Restricted air intake lter.
Pipe, hose or hose connections are
too small or long.
Air compressor is not large enough
for air requirement.
Check for leaks and repair.
Clean or replace.
Replace with larger pipe, hose or
connectors.
Use a smaller tool or larger air
compressor.
Noisy operation.
Tighten pulley and or ywheel.
Add correct amount of oil.
Remove cylinder head and inspect.
Clean or replace valve plate.
STOP THE AIR COMPRESSOR!
Contact your customer service.
Loose motor pulley or pump ywheel.
Lack of oil in the pump.
Carbon deposits on pistons or valves.
Bearing, piston or connecting rod
failure.
Pressure drop in air tank or
rapid pressure loss when air
compressor is shut off.
Air leak in air tank.
Defective Check Valve or Pilot Valve.
Slipping belt.
Restricted Pilot Valve.
Tighten or replace.
Clean or replace.
Air blowing from Air Intake
Filter.
Damaged inlet (reed) valve.
Remove cylinder head and
inspect. Clean or replace valve
plate.
TROUBLESHOOTING
SYMPTOM PROBABLE CAUSE REMEDY