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TROUBLESHOOTING GUIDE (Continued)
PROBLEM CAUSE CORRECTION
Air leak from safety valve. Possible defect in safety valve. Operate safety valve manually by puningon ring. tf
valve still leaks, it should be replaced.
Knocking Noise Remove and clean, or replace,
Decrease amount of air usage,Compressor is not supplying
enough air to operate accesso-
ries.
Motorwillnotrunor restart.
Regulator knob continuous air
leak, Regulator will not shut off
at air outlet.
Defective check valve.
Prolonged excessive use of air.
Compressor isnot large enough forair
requirement.
Restricted air intake filter,
Hole in hose,
Check valve restricted.
Airleaks.
Motor overload protection switch has
tripped.
Tank pressure exceeds pressure
switch"cut-in" pressure.
Wrong gauge wire or length of exten-
sion cord.
Check valve stuck open.
Loose electrical connections.
Possible defective motor or capacitor.
Paint spray on internal motor parts.
Fuse blown, circuit breaker tripped.
Pressure release valve on pressure
switch has not unloaded head pres-
sure.
Broken exhaust valve.
Dirty or damaged regulator internal
)arts.
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 the paint spray area.
Check and replace if required.
Remove and clean, or replace.
Tighten f_ings. (See Air Leaks Section of Trou-
bleshooting Guide,)
Let motor cool off and overload switch will automati-
cally reset.
Motor will start automaticatly when tank pressure
drops below "cut-in" pressure of pressure switch.
Check for proper gauge wire and cord length.
Remove and clean, or replace.
Check wiring connection inside pressure switch and
terminal box area.
Return to Sears Service Center for inspection or
replacement, if necessary.
Have checked at Sears Service Center. Do not
operatethe compressorinthepaintsprayarea.See
flammablevaporwarning,
1_ Check fuse box for blown fuse and replace, if
necessary. Reset circuitbreaker,Do not usea
fuse orcircuitbreakerwithhigherratingthanthat
specifiedfor yourparticularbranchcircuit.
2. Checkfor properfuse; only"Fusetron"type T
fuses are acceptable.
3. Checkfor lowvoltageconditionsand/orproper
extensioncord,
4, Disconnecttheotherelectricalappliancesfrom
circuit or operate the compressorin its own
branchcircuit,
Bleed the line by pushing the lever on the pressure
switch tothe=ofr' position;ifthevalve doesnot open,
replace it.
Remove head and valve plate, inspect and replace
if necessary,
Clean or replace regulator, or internal parts.
13
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