Craftsman 919.17673 - Manual (Page 13)

TROUBLESHOOTING GUIDE (continued)
PROBLEM CAUSE CORRECTION
Excessive beit wear Loose belt. Adjust tension. See Belt Replacement, pg. 11.
Tight belt. Adjust tension. See Belt Replacement, pg. 11.
Loose pulley. Check for worn keyway or pulley bore. Also check
for bent motor shaft. Replace parts if necessary.
Pulley misalignment. Motor pulley and flywheel must be in line within
1/32".
Squealing sound Loose belt.
There is no oil in the compressor.
Adjust tension. See Belt Replacement, pg. 11.
Add oil.
Motor will not run Motor overload protection switch
has tripped. Let motor cool off and reset switch by pressing the
red button located on the end of the motor.
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; only 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
sure switch has not unloaded
head pressure. Bleed the line by pushing the lever on the pressure
switch to the “CFF" position; if valve does not
open, replace it.
Pressure reading on the
regulated pressure gauge
drops when an accessory is
used. it is normal for "some” pressure
drop to occur.
If there is an excessive amount of pressure drop
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). .
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