TM-9-2320-285-24-1
TRUCK TRACTOR, YARD TYPE, 43,500 LB GVW, DED, 4X2, ARMY MODEL M878A1
TECHNICAL MANUAL; ORGANIZATIONAL, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL
OCTOBER 1985
TM-9-2320-285-24-1 - Page 857 of 987
TM 9-2320-285-24-1
2-73.
HEATERS MAINTENANCE (CONT)
d.
Engine Oil Heater (cont).
STEP
LOCATION
ITEM
ACTION
REMARKS
CLEANING (cont)
5
c.
All other parts
Clean
Use cleaning solvent P-D-680;
(cont)
dry thoroughly with com-
pressed air or clean cloths
INSPECTION
6
a.
3-wire cords
Inspect
Replace if jacket or insul-
(13 and 15)
ation cracked, cut, or
frayed, or if conductors
corroded or broken
b.
Oil heater as-
Inspect
Replace if cracked, insul-
sembly (9)
ation frayed, or defective
c.
Plastic tubing
Inspect
Replace if cracked, chafed,
(11 and 14)
or deteriorated
d.
All other parts
Inspect
Replace if cracked, broken,
or threads damaged
REASSEMBLY
7
Well (20)
a.
Heating element
Position
In well (20)
(19)
b.
Setscrew (18)
Install and
tighten
c.
Mounting nut
Install and
On well (20)
(16) and
tighten
reducer
bushing (17)
INSTALLATION
8
Front
3-wire cord (15)
Install, if
Para 2-73f
bumper
and plastic
removed
tubing (14)
WARNING
Be sure you twist together the same color wire ends in the following step.
Connect green-to-green, white (or gray)-to-white, and black (or remaining
color)-to-black.
Incorrect connections or exposed conductors can cause
the engine and body of the tractor to be energized at 110 Vac.
Serious
injury or death can result from contact with 110 Vac power.
2-834
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