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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
HEATING, VENTILATION, AND AIR CONDITIONING SYSTEMS
INITIAL SETUP:
Personnel Required:
One Watercraft Engineer, 88L
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. Accommodation module
Check that circuit breaker is ON.
Set to ON the circuit breaker.
ventilation fans do not
run.
2. Air conditioning/heating
1.
Check for dirty air filter in the cooling unit.
Clean or replace the air filter.
compressor cycles on and
off rapidly.
2.
Check for insufficient raw water flow.
Troubleshoot raw water flow
as detailed in malfunction
5 below.
3. Air conditioning/heating
Check condensate drain for clogging.
Clear clogging from condensate
unit drips water into the
drain.
accommodation module
or pilothouse.
4. Air conditioning/heating
1.
Check that the MODE switch is in the RUN
Place the MODE switch in
unit fan blows, but will
position.
the RUN position.
not heat or cool.
2.
Check the thermostat setting.
Set the thermostat to the
desired setting.
3.
Check for dirty air filter in the cooling unit.
Clean or replace the air filter.
4.
Check for insufficient raw water flow.
Troubleshoot raw water flow
as detailed in malfunction
5 below.
5.
Check for evaporator icing (cooling mode
Position the thermostat to
only).
heat the compartment, run
in heat mode for 15 minutes,
and then reset to cool mode.
Notify direct support main-
tenance of need for repair.
5. Air conditioning/heating
1.
Check that the circuit breaker is ON.
Set to ON the circuit breaker.
unit raw water pump does
not pump or has low flow.
2.
Check that the seacock is OPEN.
OPEN the seacock.
3.
Check that the raw water strainer is clean.
Clean the raw water strainer.
0036 00-1
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