Craftsman 919.727340 Owner's Manual page 12

TROUBLESHOOTING GUIDE (Continued)
PROBLEM
Compressor is not supplying
enough air to operate acces-
sories.
Motor will not run or restart.
Regulator knob continuous air
leak. Regulator will not shut
off at air outlet.
CAUSE
Compressor is not large enough for
air requirement.
Restricted air intake filter.
Hole in hose.
Check valve restricted.
Air leaks.
Present tank pressure exceeds
pressure switch "cut-in" pressure.
Fuse blown, circuit breaker tripped.
Motor overload protection switch has
tripped.
Possible defective motor or
capactior.
Paint spray on internal motor parts.
Check valve stuck open, putting
pressure on head.
Pressure release valve on pressure
switch has not unloaded head
pressure.
Broken exhaust valve.
Dirty or damaged regulator internal
parts.
CORRECTION
Check the accessory air requirement. If it is higher
than the SCFM or pressure supplied by your air
compressor, you need a larger compressor.
Clean or replace air intake filter. Do not operate the
air compressor in any paint spray or drywall
sanding area.
Check and replace if required.
Remove and clean, or replace.
Tighten fittings.
Motor will start automatically when tank pressure
drops below "cut-in" pressure of pressure switch.
1. Check fuse box for blown fuse and replace, if
necessary. Reset 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 Time Delay fuses
are acceptable.
3. Check for low voltage conditions and/or
proper extension cord.
4. Disconnect the other electrical appliances
from circuit or operate the compressor on its
own branch circuit.
5. Check for loose electrical connections.
Let motor cool off and overload switch will auto-
matically reset.
Return to Sears Service Center for inspection or
replacement, if necessary.
Have compressor checked at Sears Service
Center. Do not operate the compressor in the paint
spray area. See flammable vapor warning.
Remove and clean, or replace the check valve.
Bleed the line by pushing the lever on the pressure
switch to the "O" position; if the valve does not
open, replace it.
Inspect and replace if necessary.
Replace regulator.
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