Service And Adjustments - Craftsman 919.724322 Mode D'emploi

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SERVICE AND ADJUSTMENTS

All maintenance and repair opera-
tions 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 pres-
sure, 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.
Set the On/Auto/Off lever to "Off"
and unplug unit.
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
A17970
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, care-
fully 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-
Nut
nish remover can be used to
clean the check valve.
Check
9.
Apply sealant to the check valve
Valve
threads. Reinstall the check valve
(turn clockwise).
10. Replace the pressure release
tube. Tighten nut.
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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