5.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.

6.Apply sealant to the check valve threads. Reinstall the check valve (turn clockwise).

7.Replace hose and new hose clamp.

8.Perform the Break-in Procedure. See "Break-in Procedure" in the Operation section.

To Replace Regulator

1.Release all air pressure from air tank. See "To Drain Tank" in the "Maintenance" section.

2.Unplug unit.

3.Using an adjustable wrench or specified wrench remove the gauges (7/16" wrench), quick connect (13/16" wrench), and safety valve (9/16" wrench) from the regulator manifold.

5.Remove pump mounting screws securing pump (one on each side).

6.Carefully slide pump from brackets and out of the way.

7.Using an adjustable wrench or 5/8" wrench remove the regulator manifold.

Pump Mounting Screw

Pump shown moved out of the way

Regulator Manifold

8. Apply pipe sealant to new regulator manifold and assemble, tighten with wrench.

Safety Valve

Gauges

Quick Connect

9. Reapply pipe sealant to gauges, quick connect, and safety valve.

10. Reassemble all components in reverse order of removal. Make sure to orient gauges to read correctly and use wrenches to tighten all components.

Regulator Manifold

4.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

Regulator

Manifold

15 - ENG

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Porter-Cable CFFN251T To Replace Regulator, Pump Mounting Screw, Regulator Manifold, Safety Valve Gauges Quick Connect