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PROBLEM
Excessive belt wear
(continued)
CORRECTION
Adjust tension. See Belt Replacement, pg, 11.
Adjust tension. See Belt Replacement, pg. 11.
Check for worn keyway or pulley bore. Also check
for bent motor shaft. Replace parts if necessary.
TROUBLESHOOTING GUIDE
CAUSE
Loose belt,
Tight belt.
Loose pulley_
Pulley misalignment. Motor pulley and flywheel must be in line within
1/32".
Squealing sound Loose belt. Adjust tension. See Belt Replacement, pg. 11.
There is no oii in the compressor. Add oi!.
Motor wilt not run Motor overload protection switch Let motor cool off end reset switch by pressing the
has tripped, red button located on the end of the motor.
Pressure reading on the
regulated pressure gauge
drops when an accessory is
used.
Possible defective capacitor.
Return to Sears Service Center for inspection or
replacement if necessary.
Tank pressure exceeds pressure
switch "cut-in" pressure.
Motor will start automatically when tank pressure
drops below "cut-in" pressure of pressure switch.
Wrong gauge wire or length of
extension cord,
Check for proper gauge wire and cord length.
Check valve stuck open.
Remove and clean, or replace. DO NOT OVER-
TIGHTEN.
Loose electrical connections.
Unplug the compressor. Check wiring connection
inside pressure switch and motor terminal box
area.
Paint spray on internal motor
parts.
Have checked at Sears Service Center. Do not
operate the compressor in the spray area.
Possible defective motor.
Have checked at a local Sears Service Center.
Fuse blown, circuit breaker
tripped.
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; onty Buss Fusetron Type
"T" fuses are acceptable.
3. Check for low voltage conditions and/or proper
extension cord.
4. Remove check valve and clean or replace if it is
stuck open or closed.
5. Disconnect the other electrical appliances from
circuit or operate the compressor on its own
branch circuit.
Pressure release valve on pres- Bleed the line by pushing the lever on the pressure
sure switch has not unloaded switch to the "OFF" position; if valve does not
head pressure, open, replace it.
It is normal for "some" pressure If there is an excessive amount of pressure drop
drop to occur, when the accessory is used, adjust the regulator
following the instructions on pg. 6.
Note
Adjust the regulated pressure under flow
conditions (while the accessory is being
used).