TM 9-2350-247-20-1
INFRARED HEADLIGHT(S) DOES NOT OPERATE
0037 00
INITIAL SETUP:
Maintenance Level
Unit
Tools and Special Tools
General Mechanic’s Tool Kit (WP 0541 00, Item 57)
Multimeter (WP 0541 00, Item 29)
Slip Joint Pliers (WP 0541 00, Item 33)
Personnel Required
Unit Mechanic
References
See your -10
Equipment Condition
Engine stopped (see your -10)
Carrier blocked (see your -10)
NOTE
M548A1 and M548A3 troubleshooting procedures are the same. M548A1 procedure is shown.
T
1. Operate all exterior lights (see your -10).
2. Do any exterior lights operate in any light switch positions?
YES
NO
TN
1. Go to no exterior lights operate
(WP 0034 00).
Y
1. Turn master light switch to BO DRIVE.
2. Move IR/BO select switch to IR (see your -10).
3. Do both IR high beams and/or both IR low beams fail to come on?
YES
NO
GO TO BY (PAGE 0037 00-4)
0037 00-1
