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PROBLEM
Motor will not run.
Restricted air intake.
Compressor
is not supply-
ing enough air to operate
accessories.
Excessive belt wear.
Squealing
sound.
CAUSE
Motor overload protection switch has tripped.
Tank pressure exceeds pressure switch "cut-
in" pressure.
Check valve stuck - fails to relieve head pres-
sure; motor cannot start.
Loose electrical connections.
Possibte defective capacitor.
Possible defective motor.
Fuse blown, circuit breaker tripped.
Pressure release valve on pressure switch has
not un}oaded head pressure.
Dirty air filter.
Prolonged excessive use of air.
Compressor is not large enough for air require-
ment.
Restricted air intake filter.
Loose belt.
Hole in hose.
Check valve restricted,
Air leaks.
Loose belt.
Tight belt.
Loose pulley.
Loose be_t.
There
is no oil in the compressor.
CORRECTION
Let the motor cool off and reset switch by pressing
the red button located on the end of the motor.
Motor wilt start automatically
when tank pressure
drops below "cut-in" pressure of pressure switch.
Remove and clean or replace. (Do not overtighten.)
Check wiring connection inside pressure switch and
terminal box area.
Return to Sears Service Center for inspection or
replacement if necessary.
Have checked at a local Sears Service Center.
1. Check fuse box for blown fuse and replace if
necessary. Re-set circuit breaker. Do not use a
fuse or circuit breaker with higher rating than
that specified for your particular branch circuit.
2. Check for proper fuse; only "Fusetron" Type T
fuses are acceptable.
3. Check for low voltage conditions.
4. Removecheckvalveandcleanorreplaceifitis
stuck open or closed.
5. Disconnect the other electrical appliances from
circuit or operate the compressor on its own
branch circuit.
I Bleed the line by pushing the lever on the pressure
switch to the "OFF" position, opening the pressure
release valve. If the valve still doesn't open, it must be
replaced.
Replace with new.
Decrease amount of air usage.
Check the accessory air requirement. If it is higher
than the pressure supplied by your air compressor,
you need a larger compressor.
Replace air intake filter.
Adjust belt tension.
Check and replace if required.
Remove and clean or replace,
Tighten fittings. (See Air Leaks Section of Trouble-
shooting Guide.)
Adjust tension.
Adjust tension.
Check for worn keyway or pulley bore. Also check for
bent motor shaft. Replace parts if necessary.
Adjust belt tension.
Add oil.
D20410
Rev 0
2/16/00
12 -- Eng
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