Maintenance; Air Filter - Inspection And Replacement; Check Valve -Replacement; Safety Valve - Inspection - Sears CRAFTSMAN 919.727340 Manuel

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 PRESSURE.
ALL MAINTENANCE AND REPAIR OPERATIONS NOT LISTED MUST BE DONE BY A QUALIFIED SERVICE TECHNICIAN.

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
Keep the air filter clean at all 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 contains
compressed air which can be hazardous.
Manifold gets hot during operation.
Before servicing:
•Unplug or disconnect electrical supply
to compressor.
•Bleed tank of pressure.
•Allow compressor to cool.
1. Release all air pressure from air tank and unplug 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 fittings, and pressure release tube.
(Key Nos. 26 and 27)
5. Unscrew the check valve (turn counterclockwise) 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. Reinstall the check valve (turn clockwise).
8. Replace the pressure release tube and fitting.
9. Replace the outlet tube and tighten top and bottom nuts.
10.Replace the shroud.
All manuals and user guides at all-guides.com

MAINTENANCE

Safety Valve - Inspection

Filter Retainer

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 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

Storage

Before you store the air compressor, make sure you do the
following:
1. Review the Maintenance and "Operating Procedures"
2. Protect the electrical cord and air hose from damage
Store the air compressor in a clean and dry location.
10
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 ring 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 re-
placed with the same type of valve.
and remain dim when motor is started and is running.
sections and perform maintenance as necessary. Be
sure to drain water from the air tank.
(such as being stepped on or run over). Wind them
loosely around the compressor handle.