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

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.
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.
11. Replace the outlet tube and tighten nut.
12. Perform the Break-in Procedure. See "Break-in Procedure" in the
Operation section.

SERVICE AND ADJUSTMENTS

Unit cycles automatically when power is on. When doing
Maintenance, you may be exposed to voltage sources,
Before servicing:
Elbow Fitting
Check
Valve
Pressure Relief Tube
Screwdriver
In open position
nothing is visible.
19- ENG
Nuts
Outlet Tube
In closed position
disc is visible.
D28914

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