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PERFORMING
REPAIRS MAY EXPOSE VOLTAGE SOURCES, MOVING PARTS OR COMPRESSED
AIR SOURCES.
PERSONAL INJURY MAY OCCUR.
PRIOR TO ATTEMPTING ANY REPAIRS, UNPLUG THE COMPRESSOR
AND
BLEED OFF TANK AIR PRESSURE.
PROBLEM
Excessive
tank pressure
- safety
valve pops off
CAUSE
CORRECTION
--
.
Pressure
switch
does
not shut off
motor when compressor
reaches
cut-out
pressure.
Air leaks at fittings
or hose.
Air leaks at pressure
switch
release valve.
Air leaks in air tank or at air tank
welds.
Pressure
switch
cut-out
too high.
Pressure
reading
on the regu-
lated pressure
gauge drops when
an accessory
is used
Tube or hose fittings are not tight
enough.
Defective pressure switch release valve.
Defective
or dirty check valve.
Defective
air tank.
Move
the pressure
switch
lever to the
"O"
position
If the compressor
doesn't
shut off,
disconnect
from the electrical
outlet
source
and
return
to a Sears Service
Center
to re-
place the pressure
switch
Return the compressor
to Sears Service Center
to check
and adjust,
or replace
switch
Tighten fittings using teflon tape where air
can be heard escaping. Check fittings with
soapy
water
solution.
DO NOT OVER-
TIGHTEN.
Return to Sears Service Center for replace-
ment of pressure switch.
Check to see if the pin Jnthe bottom of the
pressure release valve is stuck. If it does not
move freely, return to the Service Center for
replacement of pressure switch.
A defective
check
valve results
in a constant
air leak at the pressure
release
valve when
there is pressure
in the tank and the com-
pressor
is shut off. Remove
and clean or re-
place check valve. DO NOT OVERTIGHTEN.
Air tank must be replaced.
Do not repair the
leak.
Return
compressor
to Sears
Service
Center.
DO NOT DRILLINTO,
WELD OR OTHER-
WISE
MODIFY
AIR TANK
OR IT WILL
WEAKEN.
THETANK
CAN RUPTURE
OR
EXPLODE.
Air leaks between
head and valve
Leaking
seal.
Torque
head
screws
to 7-10
ft. Ibs. If this
plate,
does not stop leak, replace
seal.
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
NOTE
Adjust
the regulated
pressure
under flow con-
ditions
(while accessory
is being used).
Air leak from safety valve
Possible
defect
in safety valve.
Operate
safety valve manually
by pulling
on
ring. If valve still leaks, it should
be
replaced.
Knocking
noise
Defective
check valve.
Remove
and clean, or replace.
11 -- ENG
D20015Rev1 3/22/00
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