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 TM 55-1905-242-14
OPERATOR MAINTENANCE
FOR LANDING CRAFT, MECHANIZED (LCM-8) (ALL VESSELS WITH MOD 2 APPLICATION)
24/12V CONVERTER, TEST
INITIAL SETUP:
Personnel Required:
Tools and Special Tools:
Two Watercraft Engineers, 88L
Multimeter (Item 2, Table 1, WP 0230 00)
References:
Equipment Condition:
TM 55-1905-242-24P (WP 0030)
INTERCOM RAY 430 circuit breaker set to ON
VHF-FM DSC500A NO. 1 circuit breaker set to
ON
TEST
1.
Place the positive (+) multimeter lead on the positive output terminal (1) of the VHF-FM radio 24/12 Vdc converter.
2.
Place the negative (-) multimeter lead on the negative output terminal (2) of the VHF-FM radio 24/12 Vdc converter.
3.
Observe the multimeter reading. It should read 13.6 Vdc. If the voltage reading is lower than 13.5 Vdc or higher than 13.7
Vdc, notify unit maintenance for replacement of the VHF-FM radio 24/12 Vdc converter.
4.
Repeat steps 1-3 for the loudhailer 24/12 Vdc converter.
NEWMAR
POWER
1
INPUT
OUTPUT
+
+
2
END OF WORK PACKAGE
00610061 00-1
00-1/2 blank
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