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 801 of 1313
HEADLAMP (ONE SIDE) INOPERATIVE - Continued
STEP
1.
ARE BULBS IN GOOD CONDITION?
a.
Replace non-operating bulb with one known to be operative (Volume 2, WP
0325).
T0751DAA
Figure 1.
Headlamp Bulb.
b.
Place battery switch to ON position.
c.
Place lighting switch to SERVICE DRIVE position.
d.
Press beam select switch to HIGH BEAM and LOW BEAM position.
NOTE
If headlamp operates, bulb was faulty.
e.
Check if headlamp operates in low and high beam.
CONDITION/INDICATION
ARE BULBS IN GOOD CONDITION?
DECISION
NO - Go to Step (3) to verify problem is solved.
YES - Go to Step (2).
TM 9-2320-272-23-1
0092
0092-2
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