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 212 of 926

TM 9-2320-283-20-1

TROUBLESHOOTING.

2-11.

TROUBLESHOOTING PROCEDURES (Continued).

MALFUNCTION

INSTRUCTION

INDICATION

YES

NO

30.

PARK BRAKE LAMP NOT WORKING.

1.

Remove circuit breaker

bracket far enough to

access circuit breaker

bracket CB-2 (para

3-114), and go to

step 2.

NOTE

Ignition switch must be in ON position and battery power connected when doing

the following checks.

2.

Check for voltage at

12-volts dc

Install cir-

Reset circuit

circuit 44E-LB ter-

nominal.

cult breaker

breaker CB-2

minal of circuit

bracket (para

and/or trouble-

breaker CB-2.

3-114), and go

shoot CB-2 cir-

to step 3.

cult. (Refer

to malfunction

33).

3.

Check for voltage at

12-volts dc Go to step 4.

Repair circuit

circuit 44E-LB ter-

nominal.

44E-LB (para

minal of low air

3-127).

TA 236849

2-87