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 TM 55-1905-242-14
OPERATOR MAINTENANCE
FOR LANDING CRAFT, MECHANIZED (LCM-8) (ALL VESSELS WITH MOD 2 APPLICATION)
OPERATOR TROUBLESHOOTING PROCEDURES
24 VDC ELECTRICAL SYSTEM
INITIAL SETUP:
Personnel Required:
References:
One Watercraft Engineer, 88L
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. Alternator not charging.
1.
Check to see if the drive belts are loose or
1.
If drive belts are loose,
broken.
tighten as necessary
2.
If drive belts are broken, no
tify unit maintenance for
replacement.
2.
Check alternator wiring for security and
1.
If alternator wiring is loose,
obvious damage.
tighten wiring.
2.
If alternator wiring is damaged,
notify unit maintenance
for repair.
3.
Test alternator (WP 0060 00).
If alternator is defective,
notify unit maintenance for
replacement.
2. Alternator output low or
1.
Check to see if drive belts are loose.
If drive belts are loose, tighten
unsteady.
as necessary (WP 0060 00).
2.
Test alternator (WP 0060 00).
If alternator is defective,
notify unit maintenance for
replacement.
3. Alternator noisy.
1.
Check to see if drive belts are loose.
If drive belts are loose, tighten
as necessary (WP 0060 00).
2.
Check for misaligned belts/pulleys.
If belts/pulleys are mis-
aligned, notify unit mainten-
ance for repair.
3.
Loosen drive belts (WP 0060 00) and spin
If bearings are noisy or rough,
alternator drive pulley by hand, listening for
notify unit maintenance for
noise and feeling for roughness in bearings.
alternator replacement.
0033 00-1
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