Craftsman 919.167812 Manual Del Usuario página 21

Before you store the air compressor, make sure you do the following:
1. Review the Maintenance section on the preceding pages and perform
scheduled maintenance as necessary.
2. Set the On/Auto/Off lever to "Off".
3. Close the globe valve.
4. Remove the air tool or accessory.
5. Open the globe valve and allow the air to slowly bleed from the air tank until
tank pressure is approximately 20 psi.
6. Drain water from air tank by opening drain valve on bottom of tank.
_ Water will condense in the air tank. If not drained, water
will corrode and weaken the air tank causing a risk of air
tank rupture.
7. After the water has been drained, close the drain or drain valve.
NOTE: if drain valve is plugged, release all air pressure. The valve can then be
removed, cleaned, then reinstalled.
8. Protect the air hose from damage (such as being stepped on or run over).
E__ isk of Unsafe Operation. Unit cycles automatically when
power is on. When servicing, you may be exposed to
voltage sources, compressed air, or moving parts. Before servicing unit
unplug or disconnect electrical supply to the air compressor, bleed tank of
pressure, and allow the air compressor to cool.
PROBLEM
Excessive
tank pressure
- safety valve
pops off
Air leaks at
fittings
Air leaks at or
inside check
valve
CAUSE
Pressure switch does
not shut off motor when
compressor reaches "cut-
out" pressure.
Pressure switch "cut-out"
too high.
Tube fittings are not tight
enough.
Check valve seat
damaged.
Air leaks at Defective pressure switch
pressure switch release valve.
release valve
CORRECTION
Move On/Auto/Off lever to the "Off"
position, if the unit does not shut off
contact a Trained Service Technician.
Contact a Trained Service Technician.
Tighten fittings where air can be
heard escaping. Check fittings with
soapy water solution. DO NOT OVER
TIGHTEN.
A defective check valve results in
a constant air leak at the pressure
release valve when there is pressure
in the tank and the compressor is
shut off. Replace check valve. Refer
the "To Replace or Clean Check
Valve" in the Service and Adjustments
section.
Contact a Trained Service Technician.
21-ENG N004035