Sears 919.72512 Air Compressor User Manual


 
12
CORRECTION
CAUSE
Compressor is not supplying
enough air to operate acces-
sories.
TROUBLESHOOTING GUIDE (Continued)
Compressor is not large enough for
air requirement.
Possible defective motor or
capactior.
Check valve stuck open, putting
pressure on head.
Pressure release valve on pressure
switch has not unloaded head
pressure.
Paint spray on internal motor parts.
Broken exhaust valve.
Regulator knob continuous air
leak. Regulator will not shut
off at air outlet.
PROBLEM
Fuse blown, circuit breaker tripped. 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.
Return to Sears Service Center for inspection or
replacement, if necessary.
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.
Remove and clean, or replace the check valve.
Have compressor checked at Sears Service
Center. Do not operate the compressor in the paint
spray area. See flammable vapor warning.
Clean or replace air intake filter. Do not operate the
air compressor in any paint spray or drywall
sanding area.
Restricted air intake filter.
Check and replace if required.Hole in hose.
Check valve restricted. Remove and clean, or replace.
Tighten fittings.
Motor will not run or restart. Present tank pressure exceeds
pressure switch "cut-in" pressure.
Motor will start automatically when tank pressure
drops below "cut-in" pressure of pressure switch.
Check the accessory air requirement. If it is higher
than the SCFM or pressure supplied by your air
compressor, you need a larger compressor.
Air leaks.
Motor overload protection switch has
tripped.
Dirty or damaged regulator internal
parts.
Let motor cool off and overload switch will auto-
matically reset.