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 281 of 926
TM 9-2320-283-20-1
TROUBLESHOOTING.
2-11.
TROUBLESHOOTING PROCEDURES (Continued).
MALFUNCTION
INSTRUCTION
INDICATION
YES
NO
50.
ONE TAILLAMP NOT WORKING.
NOTE
• Blackout toggle switch must be set to NORMAL position and headlamp switch in
ON position when doing the following checks.
• Faulty left taillamp is shown in this procedure. Apply similar troubleshooting
technique for right taillamp.
1.
Remove bulb (para
3-96), and go to step
2.
2.
Check for voltage at
12-volts dc
Replace bulb
Go to step 3.
lamp socket.
nominal.
(para 3-96).
3.
Check for voltage at
12-volts dc
Clean
Repair circuit
circuit 30M-BR terminal
nominal.
connection
30M-BR (para
of taillamp assembly.
at socket
3-127). Install
or replace
taillamp bulb
taillamp
(para 3-96).
(para 3-96).
2-156
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