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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 unit.
3.
Using an adjustable wrench
loosen outlet tube nut at air tank
and pump. Carefully move outlet
tube away from check valve.
Pressure
Relief Tube
Outlet
Tube
4.
5.
6.
7.
8.
Nut
9.
10. Replace the outlet tube and
11. Perform the Break-in Procedure.
Nut
Check
Valve
17- ENG
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.
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.
Screwdriver
In open
position
nothing is
visible.
In closed position
disc is visible.
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
(turn clockwise).
Replace the pressure release
tube. Tighten nuts.
tighten nuts.
See "Break-in Procedure" in the
Operation section.
D24456
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