TM 5-4310-362-14
PRESSURE SWITCH (cont)
LOCATION/ITEM
ACTION
REMARKS
6-12. CLEANING, INSPEC-
TION AND REPAIR
WARNING
1.
Pressure switch
Clean pressure switch with
compressed air no greater
than 30 psi.
a.
Remove loose dirt from in-
side of switch with brush or
compressed air.
b.
Inspect for damaged threads
on pipe connection.
c.
Replace if thread damage is
bad enough to cause an air
leak.
2.
Switch contacts
a.
Inspect for burning or ex-
cessive wear.
b.
Replace switch if contacts
are badly worn.
3.
Unloader valve (1)
a.
Inspect for leaks or sticky
(Model 20-911 only)
movement.
b.
Replace valve if leaky or
movement sticky.
6-13. INSTALLATION
WARNING
Voltages present in this
equipment can cause injury
or death.
Disconnect main power
switch before doing any
work on this unit.
1.
Pressure switch (1)
Screw onto tee (2).
2.
Cover (3)
Remove
Change 1 6-15
