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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
PERFORMING ANY MAINTENANCE OR REPAIR, UNPLUG THE COMPRESSOR AND BLEED OFF ALL AIR PRES-
SURE.
ALL MAINTENANCE
AND REPAIR OPERATIONS
NOT LISTED
MUST BE DONE BY A QUALIFIED SERVICE TECHNICIAN.
Air Filter - Inspection
and Replacement
Safety Valve - Inspection
Hotsurfacee.
Riskof 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 a[I times. Do not operate the com-
pressor 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 Cleaning - Replacement
Risk of personal injury. Manifold assembly con-
tains compressed air which can be haz=_rdous.
Manifold gets hot during operation.
Before servicing:
• Unplug or disconnect electrical supply to
compressor.
• Bleed tank of pressure,
• Allow compressor to cool.
1.
Releaseallairpressurefromairtankandunplug
outfit.
2,
Remove shroud. (Key Nos. 1 and 2)
3.
Loosen the top and bottom nuts and remove the outlet
tube. (Key Nos. 31,33, and 34)
4.
Remove the pressure release tube, fitting, and
connector. (Key Nos. 25, 26 and 27)
5.
Unscrewthecheckvalve(turncounterclockwise)
using
a socket wrench. (Key No. 17)
6.
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.
7,
Apply a Teflon based pipe sealant to the check valve
threads. Reinstallthe check valve (tam clockwise).
8.
Replace the pressure release tube and fitting.
9.
Replace th= ,_,,*t,=t _ ,,be and tighten top and bottom
nuts.
10. Replace th_ shroud. '
If the safety valve does not work properly,
over-pressurization
may occur, causing air tank
rupture or an explosion. Before starting compres-
sor, pull the Hng on the safety valve to make sure
that the safety valve operates freely. If the 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.
tf the overload protector shuts the motor off frequently, check
for a possible voltage problem. Low voltage can also be sus-
pected 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 running.
Storage
Before you store the air compressor, make sure you do the
following:
1. Review the Maintenance and =Operating Procedures"
sections and perform maintenance as necessary. Be
sure to drain water from the air tank.
2, Protect the electrical cord and air hose from damage
(suchas being stepped on or run over). Wind them
loosely around the compressor handle.
Store the air compressor
in a clean and dry location.
10 -- ENG
D20417 Rev. 1
6/28/00
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