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 226 of 926
TM 9-2320-283-20-1
TROUBLESHOOTING.
2-11.
TROUBLESHOOTING PROCEDURES (Continued).
MALFUNCTION
INSTRUCTION
INDICATION
YES
NO
33.
NO POWER AT 12-VOLT CIRCUIT BREAKERS CB-2, CB-3, AND/OR CB-4 (Continued).
5.
Check for voltage at
24-volts dc Go to step 6.
Clean and
ground point.
nominal.
tighten ground
connection.
Install circuit
breaker bracket
(para 3-114).
6.
Check for voltage at
24-volts dc Go to step 7.
Repair circuit
circuit 99D-BK terminal
nominal.
99D-BK and/or
of relay RY-9.
99E-BK (para
3-127). Install
circuit breaker
bracket (para
3-114).
TA 236856
2-101
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