Unit cycmee
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, unpBug the
compressor
and bmeed off aH air
pressure.
ALL MAINTENANCE
AND REPAIR
OPERATIONS
NOT LISTED MUST
BE PERFORMED
BY TRAINED
SERVICE TECHNICIAN.
Before eerv{cing:
®
Unplug or disconnect
emectricaB
supply to the air compressor.
®
BBeed tank of pressure.
,
AHow the air compressor
to
cool
To Replace
or Clean
Check
Valve
1,
Release alI air pressure from air
tank. See "To Drain Tank" [n the
"Maintenance"
section.
2.
Unplug air compressor.
3.
Remove the regulator ring and
remove the console cover.
4,
5.
Remove shrouds.
Using an adiustable wrench
loosen outlet tube nut at air tank
and pump. Carefully move outlet
tube up away from check valve.
6.
Using an adiustable wrench
loosen pressure relief tube nut
at air tank and pressure switch.
Carefully move pressure relief
tube away from check valve.
7.
Unscrew the check valve (turn
counterclockwise)
using a 7/8"
open end wrench. Note the
orientation for reassembly.
8.
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.
/
1
'
Screwdriver
position
nothing is
visibBe.
In cBosed position
disc is visible,
9.
Ctean or replace the check valve.
A solvent, such as paint or
varnish remover can be used to
clean the check valve.
10. Apply sealant to the check vane
threads. Reinstall the check valve
(turn clockwise).
A09708
18_ ENG