TM-9-2320-272-23-1
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 1 OF 5
SEPTEMBER 2012
TM-9-2320-272-23-1 - Page 831 of 1313
TAIL AND MARKER LIGHTS INOPERATIVE - Continued
STEP
1.
ARE BULBS IN GOOD CONDITION?
T1028DAA
Figure 1.
Light Bulbs.
a.
If taillight is inoperative, replace taillight bulb with one known to be operative (Volume 2, WP
0327).
b.
If side marker light is inoperative, replace side marker light bulb with one known to be
operative (Volume 2, WP
0330).
NOTE
If all tail and marker lights operates, bulb was faulty.
c.
Place battery switch to ON position.
d.
Place lighting switch to SERVICE DRIVE position.
e.
Check if all tail and marker lights operates.
CONDITION/INDICATION
ARE BULBS IN GOOD CONDITION?
DECISION
NO - Go to Step (8) to verify problem is solved.
YES - Go to Step (2).
STEP
2.
ARE SOCKETS AND TERMINALS CLEAN AND IN GOOD CONDITION?
a.
Place battery switch to OFF position.
T1029DAA
Figure 2.
Light Socket.
TM 9-2320-272-23-1
0096
0096-2
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