Service And Adjustments - Craftsman 919.724320 Manuel Du Propriétaire

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SERVICE AND ADJUSTMENTS

Unit cycles auto-
matically 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 SER-
VICE TECHNICIAN.
Before servicing:
Unplug or disconnect electrica
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.
Remove shrouds.
4.
Using an adjustable wrench
loosen outlet tube nut at air tank
and pump. Carefully move outlet
tube away from check valve.
Outlet Tube
Pressure
Relief
Tube
Nut
D24544
5.
Using an adjustable wrench
loosen pressure relief tube nut at
air tank and pressure switch.
Carefully move pressure relief
tube away from check valve.
6.
Unscrew the check valve (turn
counterclockwise) using a 7/8"
open end wrench. Note the ori-
entation 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.
In open
position
nothing is
visible.
8.
Clean or replace the check valve.
A solvent, such as paint or var-
nish remover can be used to
clean the check valve.
9.
Apply sealant to the check valve
threads. Reinstall the check valve
Nut
(turn clockwise).
10. Replace the pressure release
Check
tube. Tighten nut.
Valve
11. Replace the outlet tube and
tighten nut.
12. Replace the shroud and air filter.
13. Perform the Break-in Procedure.
See "Break-in Procedure" in the
Operation section.
18- ENG
Screwdriver
In closed position
disc is visible.

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