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 877 of 987
TM 9-2320-285-24-1
2-73.
HEATERS MAINTENANCE (CONT)
f.
Junction Box (cont).
STEP
LOCATION
ITEM
ACTION
REMARKS
INSPECTION (cont)
4
e.
All other parts
Inspect
Replace if cracked, broken,
(cont)
distorted, or threads
damaged
INSTALLATION
5
Inside
a.
Junction box
Position
Inside front bumper
front
b.
Four capscrews
Install and
Secures junction box (20)
bumper,
(19), washers
tighten
right side
(18), and
locknuts (17)
6
Junction
a.
Capscrew (14),
Install and
So latch (15) rotates freely
box (20)
latch (15),
tighten
washer (16),
and locknut
(13)
b.
Strain relief
Position
At bottom of junction box
connector
(20)
(12)
c.
Nut (11)
Install and
tighten
d.
Nut (9) and
Position
Slide over free ends of three
rubber washer
cord sets
(10)
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.
e.
Cord set wires
a.
Position
Push wire ends through strain
relief connector (12)
b.
Twist
Twist three green wires to-
together
gether; then three white
wires; then three black
wires
2-854
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