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MAINTENANCE
UNiT CYCLES AUTOMATICALLY WHEN POWER iS ON. WHEN DOING MAINTENANCE, YOU MAY BE EXPOSED TO
VOLTAGE SOURCES, COMPRESSED AiR OR MOVING PARTS. PERSONAL iNJURiES CAN OCCUR. BEFORE PERFORM=
ING ANY MAINTENANCE OR REPAIR, UNPLUG THE COMPRESSOR AND BLEED OFF ALL AiR PRESSURE.
ALL MAINTENANCE AND REPAIR OPERATIONS NOT LISTED MUST BE DONE BY
OUAMFIED SERVICE PERSONNEL.
Air Filter =inspection and Replacement
Hot surfaces. Risk of burn. Compressor
heads are exposed when filter cover is
removed. Allow compressor to cool prior to
servicing.
Filter.
Filter Retainer
Keep the air filter clean at all times. Do not operate the
compressor with the air filter removed.
A dirty air filter will not allow the compressor to operate
at full capacity. Before you use the compressor, check
the air filter to be sure it is clean.
Check Valve = Replacement
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Before servicing:
• Unplug or disconnect electrical supply to
compressor.
• Bleed tank of pressure.
• Allow compressor to cool.
Release all air pressure from air tank and unplug
unit.
Remove shroud.
Loosen the top and bottom nuts and remove the
outlet tube.
Remove the pressure release tube and fitting.
Unscrew the check valve (turn counterclockwise)
using a socket wrench.
Check that the valve disc moves freely inside the
check valve and that the spring holds the disc in the
upper, closed position. The check valve may be
cleaned with a solvent, such as paint and varnish
remover.
Apply sealant to the check valve threads. Reinstall
the check valve (turn clockwise).
Replace the pressure release tube and fitting.
9. Replace the outlet tube and tighten top and bottom
nuts.
10. Replace the shroud.
Safety Valve =inspection
ifthe safety valve does not work properly, over-
pressurization may occur, causing air tank rup-
ture or an e×plosion. Before starting compres-
sor, pull the ring on the safety valve to make
sure that the safety valve operates freely, ifthe
valve is stuck or does not operate smoothly, it
must be replaced with the same type of valve.
Motor
The motor has an automatic reset thermal overload
protector. If the motor overheats for any reason, the
overload protector will shut off the motor. The motor
must be allowed to cool down before restarting. The
compressor will automatically restart after the motor
cools.
If the overload protector shuts the motor off frequently,
check for a possible voltage problem. Low voltage can
also be suspected when:
1. The motor does not get up to full power or speed.
2. Fuses blow out when starting the motor; lights dim
and remain dim when motor is started and is run-
ning.
Storage
Before you store the air compressor, make sure you do
the following:
1. Review the "Maintenance" and "Operating Proce-
dures" sections and perform maintenance as nec-
essary.
2. Be sure to drain water from the air tank.
3. Protect theelectrical cord and air hosefrom damage
(such as being stepped on or run over). Wind them
loosely around the compressor handle.
Store the air compressor in a clean and dry location.
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