18 - ENG
TROUBLESHOOTING
Risk of Unsafe Operation. Performing repairs may expose
voltage sources, moving parts or compressed air sources. Personal injury
may occur. Prior to attempting any repairs, unplug the air compressor and
bleed off all air tank air pressure.
PROBLEM
CAUSE
CORRECTION
Excessive tank pres-
sure - safety valve
pops off.
Pressure switch does not shut
off motor when compressor
reaches "cut-out" pressure.
Move Off/Auto switch
to the "OFF" position, if
the unit does not shut off
contact a Trained Service
Technician.
Pressure switch "cut-out" too
high.
Contact a Trained Service
Technician.
Air leaks at fittings.
Tube fittings are not tight
enough.
Tighten fittings where air
can be heard escaping.
Check any exposed fit-
tings with soapy water
solution.
DO NOT
OVERTIGHTEN.
Apply thread seal tape to
threads of exposed fit-
tings.
Air leak from safety
valve.
Possible defect in safety valve. Operate safety valve
manually by pulling on
ring. If valve still leaks,
Contact a Trained Service
Technician.
Knocking Noise.
Possible defect in safety valve. Operate safety valve
manually by pulling on
ring. If valve still leaks,
Contact a Trained Service
Technician.
Pressure reading on
the regulated pres-
sure 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
in the
Description of
Operation
paragraph in
the
Operation
section.
NOTE:
Adjust the regu-
lated pressure under flow
conditions (while acces-
sory is being used).
For assistance with your machine, visit our website at
www.portercable.com
for
a list of service centers or call the help line at 1-(888)-848-5175.
