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 316 of 987
TM 9-2320-285-24-1
2-28.
ENGINE WARNING KIT MAINTENANCE (CONT)
STEP
LOCATION
ITEM
ACTION
REMARKS
ON-VEHICLE TESTING (cont)
2
Engine,
Jumper wire
Connect
Between alarmstat sensor (1)
front,
lead and ground
right side
3
Tractor cab
a. Key switch
Place in ON
Start engine. Alarm bell
position
should sound and WATER TEMP
warning light should be
lit. If alarm bell and
light do not operate, check
all wires and connections.
If wires and connections
are okay, replace alarmstat
sensor (step 6 below). If
OIL PRESSURE warning light
and/or WATER LEVEL warning
lights are lit, check
diodes (para 2-35f). Turn
engine off and disconnect
jumper wire
b. Right corner
Lower and
Para 2-26g(2)
instrument
secure
panel
REMOVAL
4
Cab tilt
Cab
Tilt 45
pump
degrees
5
Engine
Radiator and
Drain coolant
Para 2-15a(1)
compartment
engine
6
Right
Alarmstat sensor
Remove
Para 2-32c
thermostat
(1)
housing
7
Engine,
a. Oil pressure
Remove
Para 2-32a
left side
warning
sender (2)
b. Oil pressure
Remove
Para 2-32a
sender (3)
c. Elbow (4)
Loosen and
From adapter (10)
disconnect
d. Fitting (5)
Loosen and
From elbow (8)
disconnect
e. Fitting (6)
Loosen and
From tee (9)
disconnect
2-293
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