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 TM 55-1905-242-14
UNIT MAINTENANCE
FOR LANDING CRAFT, MECHANIZED (LCM-8) (ALL VESSELS WITH MOD 2 APPLICATION)
DIGITAL COMPASS SYSTEM (KVH MV103C), REPLACE
INITIAL SETUP:
Tools and Special Tools:
Materials/Parts:
Tool Kit, Mechanic's Rail and Marine
Sealing Compound, Loctite 242 (Item 16, Table 2,
(Item 1, Table 1, WP 0230 00)
Multimeter (Item 2, Table 1, WP 0230 00)
Tape, Insulation, Electrical (Item 17, Table 2, WP 0230 00)
Tape, Silicone (Item 18, Table 2, WP 0230 00)
Equipment Condition:
DIGITAL COMPASS circuit breaker set to OFF,
References:
locked out, and tagged out IAW FM 55-502
FM 55-502
TM 55-1905-242-24P (WP 0039)
Personnel Required:
Two Watercraft Engineers, 88L
One Watercraft Operator, 88K
REMOVAL
WARNING
Replace or repair components only after the affected circuit has been secured, locked
out, and tagged out. Performing replacement with the circuit energized may result in
damaged equipment and serious injury or death to personnel.
NOTE
Cotter pins, lockwashers, locking nuts, and similar locking devices shall be discarded after removal and replaced with
new cotter pins, lockwashers, locking nuts and similar locking devices.
1.
To remove the processor unit:
a.
Remove the bolts (1) and lockwashers (2) that secure the processor unit (3) to its mount on the mast.
b.
Follow the processor unit cable (4) down the mast and through the bulkhead into the pilothouse, freeing it from its
mounts as the work proceeds.
c.
Disconnect the processor unit cable (4) from its socket (5) on the junction box (6).
2.
To remove the remote display unit:
a.
Remove the nuts (8) and washers (9) from the studs that secure the remote display unit (7) to the console.
b.
Follow the remote display unit cable (10) to the junction box (6), freeing it from its mounts as the work proceeds.
c.
Disconnect the remote display unit cable (10) from its socket (11) on the junction box (6).
0105 00-1
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