ALL MAINTENANCE AND REPAIR
OPERATIONS NOT LISTED MUST BE
PERFORMED BY TRAINED SERVICE
TECHNICIAN.
Risk of Unsafe
Operation. Unit
cycles automatically
when power
is on. When servicing,
you may
be exposed to voltage sources,
compressed
air, or moving parts.
Before servicing
unit unplug or
disconnect
electrical
supply to
the air compressor,
bleed tank
of pressure, and 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.
Turn air compressor
off, lock out
the power supply, and relieve all
air pressure from the air tank.
3.
Using an adjustable wrench loos-
en outlet tube nut at air tank and
pump. Carefully move outlet tube
away from check valve.
6.
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.
position
nothing
is
visible.
in closed
position
disc is visible.
7.
Clean or replace the check valve.
A solvent, such as paint or varnish
remover can be used to clean the
check valve.
8.
Apply sealant to the check valve
threads. Reinstall the check valve
(turn clockwise).
9.
Replace the pressure release tube.
Tighten nuts.
10. Replace the outlet tube and tight-
en nuts.
11. Perform the Break-in Procedure.
See "Break-in Procedure" in the
Operation section.
ADDITIONAL
SERVICE
Pressure
Relief Tube
Disassembly
or service of the air
compressor
beyond what is covered
in this manual is not recommended,
if
additional service is required, contact
your nearest Authorized Warranty
Service Center.
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 ori-
entation for reassembly.
N001248
20-ENG