Service And Adjustments; To Replace Or Clean Check Valve - Craftsman 919.184193 Manual Del Propietário

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SERVICE AND ADJUSTMENTS

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.
pressure
Relief
Tube
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.
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.
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.
All manuals and user guides at all-guides.com
Nut
Outlet
Tube
Nut
Check
Valve
Screwdriver
In open
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.
20-ENG
Nut

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