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 TM 55-1905-219-14-5
3-65.3.3.
FUEL OIL PRESSURE ALARM SWITCH - MAINTENANCE INSTRUCTIONS
(Cont).
LOCATION
ITEM
ACTION
REMARKSS
TESTING
c. If the gage reads 20
psi (137.9 kPa), the
fuel oil pressure
switch is good.
ADJUSTMENTS
6. Fuel
a. Brass cap
Remove
Use a small
oil
in center
screw driver.
Pressure
of switch
CAUTION
Do not damage the brass cap or gasket.
b. Locknut
Loosen
Secure adjus-
(7)
ting screw.
c. Adjus-
Adjust.
With the lock-
ting
nut backed off,
screw
turn the adjus-
(8)
ting screw
clockwise to de-
crease the pres-
sure at which
the switch will
make contact.
Turn the adjus-
ting screw
counter-clock-
wise to in-
crease the pres-
sure at which will
make contact.
3-1181
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