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 231 of 987
TM 9-2320-285-24-1
2-25.
STARTING SYSTEM MAINTENANCE (CONT)
a.
Solenoid and 70 AMP Circuit Breaker (cont).
STEP
LOCATION
ITEM
ACTION
REMARKS
INSTALLATION (cont)
4
z.
Terminal (10)
Connect
To starter solenoid
(cont)
and red wire
(11)
aa. Nut (9)
Install and
tighten
5
Battery
Battery ground
Connect
Para 2-34a
box
cable
TESTING
6
Battery
Battery ground
Disconnect
Para 2-34a
box
cable
7
Starter
a.
Two nuts (1)
Remove
and cap-
screws (2)
b.
Shield (3)
Remove
8
Battery
Battery ground
Connect
Para 2-34a
box
cable
NOTE
In the following steps two technicians are required; one in the cab to
operate key switch and the other to watch starter solenoid.
9
Cab
Key switch
Place in START position
10
Starter
a.
Starter
Observe that starter solenoid pulls in.
solenoid
a. If it does not, check for voltage at
solenoid (31) control terminal (tan/
green wire) with key switch in START
position
b. If voltage is 11 volts or more, proceed
to step 10b below
c. If voltage is less than 11 volts, check
battery system voltage (para 2-34a).
If
battery system voltage is normal, check
vehicle wiring.
If battery system
voltage is not normal, replace
batteries (para 2-34a)
d. If voltage is zero, check circuit
breaker (40) (step 10c below)
2-208
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