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Note: Troubleshooting problems may have similar causes and solutions.
PROBLEM
Low discharge pressure
Compressor pump
knocking
Oil in discharge air
Overheating
Excessive belt wear
Excessive Unloader
Cycling
Gasoline Engine Stall
Compressor won't start
in cold temperatures
Air leaking through
bleeder valve after
compressor shuts off
200-3223
TROUBLESHOOTING
POSSIBLE CAUSE
Air leaks
Leaking valves
Restricted air intake
Blown gaskets
Worn piston rings or cylinder
Loose motor pulley or pump
flywheel
Low oil level in pump crankcase
Excess carbon on valves or top
of piston
Worn piston rings or cylinder
Restricted air intake
Oil level too high
Poor ventilation
Dirty cooling surfaces
Restricted air passages
Pulley out of alignment
Improper belt tension
Pulley wobbles
Air leaks in piping
Air leaks in piping
Compressor not winterized
Engine flooded
Compressor too cold
Dirty or defective check valve.
SOLUTION
Tighten or replace leaking fittings or connections. Do not overtighten.
Contact a qualified service center.
Clean or replace air filter element(s).
Contact a qualified service center.
Contact a qualified service center.
Retighten pulley and flywheel. Check alignment.
Keep oil at proper level at all times.
Contact a qualified service center.
Contact a qualified service center.
Clean or replace the air filter element(s).
Reduce to proper level. Use full synthetic, non-detergent air
compressor oil.
Relocate compressor to an area with cool, dry, well circulated air, at
least 12 in. from nearest wall.
Clean all cooling surfaces thoroughly.
Inspect and replace transfer tubes and/or the unloader
Realign pulley with compressor flywheel.
Readjust.
Replace the pulley and check for a damaged crankshaft or flywheel.
Tighten or replace leaking fittings or connections. Do not overtighten.
Tighten or replace leaking fittings or connections. Do not overtighten.
See cold weather preparation.
Remove spark plug and dry it. Reinstall.
Move compressor to a warmer location.
Replace or clean the check valve (see "To replace or clean check
valve" in the maintenance section).
9 - ENG
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