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 246 of 926

TM 9-2320-283-20-1

TROUBLESHOOTING.

2-11.

TROUBLESHOOTING PROCEDURES (Continued).

MALFUNCTION

INSTRUCTION

INDICATION

YES

NO

35.

NO POWER AT 24-VOLT CIRCUIT BREAKERS CB-8 AND/OR CB-9 (Continued).

7.

Reconnect circuit

24-volts dc

Circuit breaker

If circuit

18A-TN to circuit

nominal.

CB-8 is OK.

Go

breaker trips,

breaker CB-8.

Check

to step 8. circuit 18A-TN

for voltage at

is shorted to

terminal.

ground.

Refer

to wiring dia-

gram (Appendix

D, figure FO-8)

and malfunction

of faulty

system.

Install

circuit breaker

panel (para

3-114).

TA 236866

2-121