Service And Adjustments; To Replace Or Clean Check Valve - Porter Cable JOB BOSS C3550 Manual De Instrucciones

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compressed air or moving parts. Personal injuries can occur. Before

performing any Maintenance or repair, unplug the compressor and bleed

off all air pressure.

ALL MAINTENANCE AND REPAIR OPERATIONS NOT LISTED MUST BE

PERFORMED BY TRAINED SERVICE TECHNICIAN.

•

Unplug or disconnect electrical supply to the air compressor.

•

Bleed tank of pressure.

•

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 section.

Unplug outfit.

NOTE: If needed the top panel may be removed to make parts accessible.

Using an adjustable wrench loosen

outlet tube nut at air tank and pump.

Carefully move outlet tube away from

check valve.

Using an adjustable wrench loosen

pressure relief tube nut at air tank

and pressure switch. Carefully move

pressure relief tube away from check

valve.

Unscrew the check valve (turn

counterclockwise) using a 7/8" open

end wrench. Note the orientation for

reassembly.

Unscrew elbow fitting from the check valve (turn counterclockwise) using

an adjustable wrench. Note the orientation of the elbow fitting for

reassembly.

Using a screwdriver, carefully

push the valve disc up and

down. NOTE: The valve disc

should move freely up and

down on a spring which holds

the valve disc in the closed

position. If not, the check valve

needs to be cleaned or replaced.

Clean or replace the check valve. A solvent, such as paint or varnish

remover can be used to clean the check valve.

Apply sealant to the check valve threads. Reinstall the check valve and

elbow fitting (turn clockwise).

10. Replace the pressure release tube. Tighten nut.

11. Replace the outlet tube and tighten nut.

12. Perform the Break-in Procedure. See "Break-in Procedure" in the

Operation section.