Service And Adjustments; To Replace Or Clean Check Valve - Porter Cable CFFN251N-P Manual De Instrucciones

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2.
Turn the regulator knob counterclockwise to set the outlet pressure to zero.
3.
Remove the air tool or accessory.
4.
Pull ring on safety valve allowing air to bleed from the tank until tank pressure
is approximately 20 psi. Release safety valve ring.
5.
Drain water from air tank by opening drain valve on bottom of tank.
Risk of Bursting. 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.
Risk of Property Damage. Drain water from air tank may contain oil
and rust which can cause stains.
6.
After the water has been drained, close the drain valve. The air compressor
can now be stored.
NOTE: If drain valve is plugged, release all air pressure. The valve can then be
removed, cleaned, the reinstalled.
ALL MAINTENANCE AND REPAIR OPERATIONS NOT LISTED MUST BE
PERFORMED BY TRAINED SERVICE TECHNICIAN.
Risk of Unsafe Operation. Unit cycles automatically when
power is on. When servicing, you may be exposed to voltage sources, com-
pressed 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.

TO REPLACE OR CLEAN CHECk VALVE

Release all air pressure from air tank. See To Drain Tank in the Maintenance
1.
section.
2.
Unplug unit.
3.
Loosen the nut on the outlet tube and
move the outlet tube to the side.
4.
Unscrew the check valve (turn coun-
ter-clockwise) using a socket wrench.
5.
Unscrew elbow fitting from the check
valve (turn counter-clockwise) using an
adjustable wrench. Note the orientation
of the elbow fitting for reassembly.
6.
Make sure the valve disc moves freely inside the check valve and 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 and
elbow fitting (turn clockwise).
8.
Replace the pressure outlet tube and tighten the nut.

SERVICE AND ADjUSTMENTS

Nut
Check Valve
13 - ENG
Outlet Tube
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