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

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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.

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Contents
Instruction Pancake Manual Compressor Important Safety Instructions Table of ContentsSafety Guidelines Definitions Always remain in attendance with How To Prevent ItWhat Could Happen Attachments & Accessories Repairs attempted by unqualified Safety equipment must be properlyElectricity. Like any other electrically Personnel can result in serious injuryResult in serious burns How To Prevent It Hazard Warning Risk from Moving PartsEquip area of operation with a fire extinguisher Never defeat the safety features of thisKeep children away from the air compressor at all times Glossary SpecificationsAccessories Duty CycleUnpacking AssemblyInstallation Location of the Air CompressorExtension Cords Voltage and Circuit ProtectionOperation OnI/OffO Switch Tank Pressure Gauge OutletSafety Valve Regulator Know Your Air CompressorDrain Before StartingBefore Each Start-Up Check ValveTo Check Safety Valve MaintenanceHow to Start Customer ResponsibilitiesTo Drain Tank Service and AdjustmentsTo Replace or Clean Check Valve Hose Clamp Check ValvePump Mounting Screw Safety Valve Gauges Quick ConnectTo Replace Regulator Regulator ManifoldStorage Troubleshooting Problem Cause CorrectionBeing used Service Warranty Warranty Registration Limited Warranty