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 TM 55-1905-242-14
UNIT MAINTENANCE
FOR LANDING CRAFT, MECHANIZED (LCM-8) (ALL VESSELS WITH MOD 2 APPLICATION)
ENGINE/TRANSMISSION INSTRUMENTS, REPLACE
INITIAL SETUP:
Materials/Parts:
Tools and Special Tools:
Gloves, Chemical Protective (Item 3, Table 2, WP 0230 00)
Tool Kit, Mechanic's Rail and Marine (Item 1,
Goggles, Industrial, No Vents (Item 4, Table 2,
Table 1, WP 0230 00)
Multimeter (Item 2, Table 1, WP 0230 00)
Rag, Wiping (Item 5, Table 2, WP 0230 00)
Equipment Condition:
References:
ENGINE ALARM PANEL and RUDDER ANGLE
FM 55-502
& TANK GAUGES circuit breakers locked out
TM 55-1905-242-24P (WP 0007)
and tagged out IAW FM 55-502
Personnel Required:
Two Watercraft Engineers, 88L
GENERAL
Two primary types of gauges are used on the LCM-8 Mod 2: gauges with electric senders and direct reading gauges. The
two types of gauges can be distinguished by observing the back side of the gauge. Gauges with electric senders have only
wires connected to their back sides. Direct reading gauges have a hose or line connected to the back side. Direct reading
gauges may also have wiring connected to their back sides.
REMOVAL--ALL GAUGES
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.
Do not allow hydraulic fluid or engine oil to come in contact with unprotected skin or
eyes. Prolonged skin contact can cause illness or injury. Eye contact can cause serious
injury. Always wear chemical protective gloves and goggles when handling hydraulic
fluid and engine oil. Failure to comply can result in illness, serious injury, or death.
Hydraulic hoses and lines may be under pressure. Relieve pressure by operating the
appropriate control valve, if possible. Loosen fittings on hose lines slowly. Allow oil to
run around threads of fitting, releasing pressure before disconnecting fitting. Releasing
pressurized oil suddenly may cause serious injury or death.
1.
Remove the screws (1) that secure the gauge panel (2) to the console.
2.
Lift the gauge panel (2) away from the console.
0079 00-1
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