Sears Craftsman 919.154320 - Manual (Page 9)

4. Turn the OFF/AUTO lever to “AUTO” and allow tank
pressure to build. Motor will stop when tank pressure
reaches “cut-out” pressure.
5. Open the regulator by turning it clockwise. Adjust the
regulator to the correct pressure setting. Your com­
pressor is ready for use.
6. Always operate the air compressor in well-ventilated
areas; free of gasoline or other solvent vapors. Do
not operate the compressor near the spray area.
• When you are finished:
7. Set the “OFF-AUTO” lever to “OFF”.
8. Turn the regulator counter-clockwise and set the out­
let pressure to zero.
9. Remove the air tool or accessory.
10. Open the regulator and allow the air to slowly bleed
from the tank. Close the regulator when tank pres­
sure is approximately 20 psi.
11. Drain water from air tank.
WARNING
1
WATER WILL CONDENSE IN THE ÄIB TANK.
IF NOT DRAINED, WATER WILL CORRODE
AND WEAKEN THE AIR TANK CAUSING A
RISK OF AIR TANK RUPTURE.
With tank pressure at approximately 20 psi., open
the drain cock and allow moisture to drain.
NOTE
If drain cock valve is plugged, release all air pres­
sure. The valve can then be removed, cleaned, then
reinstalled.
12. After the water has been drained, close the drain
cock. The air compressor can now be stored.
MAINTENANCE
WARNING
1
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.
Air Filter - Inspection
NOTE
Keep the air filter clean at all times. Do not oper­
ate 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.
If it is dirty, simply pull it out. You may wash it with a mild
detergent and warm water, or replace it.
Check Valve - Replacement
1. Release all air pressure from air tank and unplug
outfit.
2. Remove shroud.
3. Loosen the top and bottom nuts and remove the
outlet tube.
4. Remove the pressure release tube and fitting.
5. Unscrew the check valve (turn counterclockwise)
using a socket wrench.
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 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.
Safety Valve - Inspection
WARNING
]
IF THE SAFETY VALVE DOES NOT WORK
PROPERLY, OVER-PRESSURIZAT!ON MAY
OCCUR, CAUSING AIR TANK RUPTURE OR
AN EXPLOSION. OCCASIONALLY 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 REPLACED WITH
THE SAME TYPE OF VALVE.
Motor
The motor has an automatic reset thermal overload pro­
tector. If the motor overheats for any reason, the over­
load protector will shut off the motor. The motor must be
allowed to cool down before restarting. The compressor
will automatically re-start 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 running.