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TM 10-3930-638-24&P
2-29. AUXILIARY PANEL MAINTENANCE (cont)
b. Hourmeter (cont).
STEP
LOCATION
ITEM
ACTION
REMARKS
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.
2
Wire connectors and
Clean
Use cleaning solvent P-D-680 on
hourmeter terminals
connectors and terminals only
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.
3
Bracket (4) and all
Clean
Use cleaning solvent P-D-680.
hardware
Dry thoroughly with compressed air
INSPECTION
4
All hardware
Inspect
Replace if worn, or if threads damaged
5
Positive wire and ground
Inspect
Replace if insulation frayed, or if
wire
conductors broken
6
Hourmeter
Inspect
Replace if threads damaged, or if
receptacle terminals damaged
7
Bracket (4)
Inspect
Replace hourmeter if bracket (4) cracked
or damaged
INSTALLATION/REPLACEMENT
8
Left hood support a. Ground wire and
Position
Inside left fender bolt hole
plate, bottom
lead (2)
b. Cap screw (8), lock
Install and
washer (7) and nut (6)
tighten
c. Hourmeter (5)
Position
On left side panel
d. Bracket (4)
Position
On hourmeter studs
e. Two wing nuts (3)
Tighten both
Until hourmeter is securely mounted
evenly
f. Wire leads (1 and 2)
Push on
Note tags for correct connection
g. All leads and terminals Seal
Use silicone rubber sealer
2-143
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