Porter-Cable C3150 instruction manual Service and Adjustments, To Replace or Clean Check Valve

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SERVICE AND ADJUSTMENTS

Unit cycles automatically when power is on. When doing Maintenance, you may be exposed to voltage sources,

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.

Before servicing:

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

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

2.Unplug outfit.

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

3.Using an adjustable wrench loosen outlet tube nut at air tank and pump. Carefully move outlet tube away from check valve.

4.Using an adjustable wrench loosen pressure relief tube nut at air tank and pressure switch. Carefully move pressure relief tube away from check valve.

5.Unscrew the check valve (turn counterclockwise) using a 7/8” open end wrench. Note the orientation for reassembly.

Elbow Fitting

Nuts

Check

Valve

Outlet Tube

Pressure Relief Tube

6.Unscrew elbow fitting from the check valve (turn counterclockwise) using an adjustable wrench. Note the orientation of the elbow fitting for reassembly.

7.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.

8.Clean or replace the check valve. A solvent, such as paint or varnish remover can be used to clean the check valve.

9.Apply sealant to the check valve threads. Reinstall the check valve and elbow fitting (turn clockwise).

10.Replace the pressure release tube. Tighten nut.

Screwdriver

11.Replace the outlet tube and tighten nut.

12.Perform the Break-in Procedure. See “Break-in Procedure” in the Operation section.

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Contents C3150 ModelImportant Safety Instructions Safety Guidelines DefinitionsHazard Attachments & Accessories Electricity. Like any other electrically Result in serious burns Fire, Inhalation, Damage to Vehicle Surfaces Duty Cycle SpecificationsGlossary Assembly AccessoriesInstallation UnpackingVoltage and Circuit Protection Extension CordsKnow Your Air Compressor Description of Operation OperationHow to Stop How to Use Your UnitBefore Each Start-Up How to Use Remote Console How to StartCustomer Responsibilities MaintenanceTo Check Safety Valve Air Compressor Pump Intake and Exhaust Valves Air Filter Inspection and ReplacementTo Drain Tank To Replace or Clean Check Valve Service and AdjustmentsStorage Problem Cause Correction TroubleshootingPressure reading Check wiring connection Limited Warranty