TM 5-2420-231-10
0019
TROUBLESHOOTING PROCEDURES - Continued
Table 1. Troubleshooting Procedures - Continued.
SYMPTOM
MALFUNCTION
CORRECTIVE ACTION:
ELECTRICAL SYSTEM
1. Any lights do not operate.
Fuse burned out.
Check fuse (WP 0023). If faulty, notify
field level maintenance.
2. All lights dim with engine
1. Battery charge low.
If BHL will not start, attempt to slave-start
shut off.
the BHL (WP 0015) and allow battery to
charge. Monitor voltmeter gage for
reading in normal range.
2. Battery cables corroded/loose.
Check for corroded/loose battery cables.
If corroded/loose, notify field level
maintenance.
3. All lights dim with engine
Alternator belt slipping.
a. Check voltmeter gage. Needle should
operating.
be in green range (11 to 15.3 volts).
b. If needle is not in green range, notify
field level maintenance.
AIR CONDITIONER
Air is not cool.
1. Controls not set properly.
a. Turn heater switch fully counter-
clockwise (CCW).
b. Turn air conditioning temperature
switch fully clockwise (CW).
c. Open recirculation grill.
2. Cab air filter clogged.
Clean air filter (WP 0023).
3. Air conditioning condenser
Clean condenser (WP 0024).
(located forward of radiator)
clogged.
END OF WORK PACKAGE
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