Service And Adjustments; To Replace Or Clean Check Valve - Porter-Cable CPLDC2541S Instruction Manual

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.
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.
A02258

SERVICE AND ADJUSTMENTS

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