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 TM 55-1905-242-14
DIRECT SUPPORT MAINTENANCE
FOR LANDING CRAFT, MECHANIZED (LCM-8) (ALL VESSELS WITH MOD 2 APPLICATION)
AIR CONDITIONING CONDENSING UNITS, REPLACE
INITIAL SETUP:
Tools and Special Tools:
Personnel Required:
Tool Kit, Mechanic's Rail and Marine (Item 1,
Two Watercraft Engineers, 88L
Table 1, WP 0230 00)
Materials/Parts:
Tool Kit, Service Refrigeration (Item 8, Table 1,
Monochlorodifluorom (Refrigerant) (R-22) (Item 27,
Recovery Unit (Item 9, Table 1, WP 0230 00)
Table 2, WP 0230 00)
Multimeter (Item 2, Table 1, WP 0230 00)
Goggles, Industrial, No Vents (Item 4, Table 2,
Equipment Condition:
References:
A/C SEA WTR COOLING PUMP circuit breaker
set to OFF, locked out, and tagged out IAW
FM 55-502
FM 55-502.
TM 55-1905-242-24P (WP 0061)
Circuit breaker for appropriate cooling unit set
to OFF, locked out, and tagged out IAW FM
55-502.
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.
Goggles should always be worn when working with monochlorodifluorom (refrigerant).
Failure to wear goggles when working with monochlorodifluorom (refrigerant) can re-
sult in serious injury or death to personnel.
1.
Don protective goggles.
2.
Connect the recovery unit to the service valves (1) and recover the monochlorodifluorom (refrigerant) from the unit.
3.
Remove the screws (2) that secure the electrical box cover (3) to the electrical box (4). Remove the cover.
4.
Set the multimeter to the Vac (Volts alternating current) setting. Locate the terminal block to which the wiring (5) is
connected. Use the multimeter to check for voltage. If no voltage is noted, proceed to the next step. If voltage is noted,
ensure that the circuit breaker is properly secured.
5.
Label and remove the wiring (5) from the electrical box (4).
6.
Remove the raw water lines from the condenser fittings (6).
7.
Disconnect the refrigerant lines from the service valve fittings (7).
8.
Remove the bolts (8) and washers (9) that secure the condensing unit to the deck. Remove the condensing unit.
0169 00-1
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