Porter-Cable CFFN251T User Manual download pdf (Page 14)

14 - ENGA11894

To Drain Tank

1. Set the On/Off switch to OFF (O).

2. Pull the regulator knob out and

turn 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.

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.

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.

To Replace or Clean Check

Valve

1. Release all air pressure from air

tank. See "To Drain Tank" in the

Maintenance section.

2. Unplug unit.

3. Remove the hose by removing

the hose clamp. NOTE: The hose

clamp is not reusable. You must

purchase a new hose clamp, see

the Parts List Manual or purchase

a standard hose clamp at a local

hardware store.

SERVICE AND ADJUSTMENTS

Risk 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.

ALL MAINTENANCE AND REPAIR OPERATIONS NOT LISTED MUST BE

PERFORMED BY TRAINED SERVICE TECHNICIAN.

4. Unscrew the check valve (turn

counter-clockwise) using a

socket wrench.

Check

Valve

Hose Clamp

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Porter-Cable CFFN251T User Manual Page 14

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