Porter-Cable CFFN251T Service and Adjustments, To Drain Tank, To Replace or Clean Check Valve

Models: CFFN251T

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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.

SERVICE AND ADJUSTMENTS

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, 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.

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.

Hose Clamp

Check

Valve

4.Unscrew the check valve (turn counter-clockwise) using a socket wrench.

A11894

14 - ENG

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Porter-Cable CFFN251T Service and Adjustments, To Drain Tank, To Replace or Clean Check Valve, Hose Clamp Check Valve