TM-9-2320-283-20-1

TRUCK TRACTOR, LINE HAUL, 50,000 GVWR, 6X4, M915A1

TECHNICAL MANUAL; ORGANIZATIONAL MAINTENANCE PART 1 OF 3

DECEMBER 1983

TM-9-2320-283-20-1 - Page 174 of 926

TM 9-2320-283-20-1

TROUBLESHOOTING.

2-11.

TROUBLESHOOTING PROCEDURES (Continued).

MALFUNCTION

INSTRUCTION

INDICATION

YES

NO

17 ETHER SOLENOID FAILS TO OPERATE WHEN ETHER START SWITCH IS PUSHED

(Continued).

18 ALL ELECTRICAL SYSTEMS ARE WEAK.

1

Inspect battery

a

Loose

Tighten

Go to step b.

Terminals

terminals.

b

Corroded

Clean

Go to step 2.

or dirty

terminals.

2

Inspect battery

Cracked or

Replace battery

Go to step 3.

Case

broken

(para 3-121).

3

Inspect cables

Frayed or

Replace battery

Go to step 4.

broken

cable(s) (para

3-124).

NOTE

One defective battery in a series-

parallel connection will bring down

charge of other batteries.

4

Check battery test

a

Green

Test battery

Go to step b.

indicators

(malf 19, step 2).

b

Dark

Charge battery

Go to step c.

(para 3-119).

c

Yellow

Replace battery

Refer to

(para 3-121)

malfunction 25.

TA 236828

2-49