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TM 10-3930-638-24&P
2-31. SENDING UNITS AND SWITCHES MAINTENANCE (cont)
b. Neutral Start and Back-up Alarm Switches (cont).
STEP
LOCATION
ITEM
ACTION
REMARKS
REMOVAL
1
Engine compart-
a. Two screws (1), lock
Remove
From switch terminals
ment front, left
washers (2) and wire
side of vehicle
leads (3)
b. Switch (4)
Remove
Turn counterclockwise and pull from
transmission
CLEANING
WARNING
Dry cleaning solvent (P-D-680), used to clean parts is toxic and
flammable. Wear protective goggles and gloves and use only in a
well ventilated area. Avoid contact with skin, eyes, and clothes
and don’t breathe vapors. Do not use near open flame or
excessive heat and don’t smoke when using it. Failure to do so
could cause serious injury. If you become dizzy while using
cleaning solvent, get fresh air immediately, and get medical
attention. If contact with skin or clothes is made, flush with large
amounts of water. If contact with eyes is made, wash eyes with
water immediately, and obtain medical aid immediately.
WARNING
Wear safety glasses when drying parts with compressed air.
Failure to do so could cause serious injury to eyes and possible
blindness. If you hurt your eyes or if a foreign object is blown into
your eyes, seek medical attention immediately.
2
Screws (1) and lock
Clean
Use cleaning solvent P-D-680.
washers (2)
Dry thoroughly with compressed air
3
Wire connectors and
Clean
Use cleaning solvent P-D-680 on
switch terminals
connectors and terminals only
INSPECTION
4
Screws (1) and lock
Inspect
Replace if worn, or if threads damaged
washers (2)
5
Harness wires
Inspect
Replace if insulation frayed, or if
conductors broken
INSTALLATION
6
Engine compart- a. Switch (4)
Install and
Turn clockwise until securely mounted to
ment front left side
tighten
transmission
of vehicle
b. Two wire leads (3),
Install and
Until wire leads (3) are securely mounted
lock washers (2) and
tighten
to switch terminals
screws (1)
c. Wire leads (3) and
Seal
Use silicone rubber sealer
switch terminals
2-161
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