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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
FIRE PUMP SYSTEM
INITIAL SETUP:
Personnel Required:
References:
One Watercraft Engineer, 88L
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. Fire pump does not pump.
1.
Check that fire pump clutch circuit breaker
Set to ON the fire pump circuit
and switch are ON.
breaker and switch.
2.
Check that the generator engine is running.
Start the generator engine.
3.
Check that the pump is primed.
Prime the pump.
4.
Check that the seacock is OPEN.
OPEN the seacock.
5.
Check that the fire pump strainer is clean.
Service the fire pump strainer
2. Fire pump flow is low.
1.
Check for leaks in suction piping.
Repair leaks as necessary or
notify unit maintenance for
repair.
2.
Check that the seacock is fully OPEN.
OPEN the seacock.
3.
Check that the fire pump strainer is clean.
Service the fire pump strainer
3. Fire pump is noisy.
1.
Check for misalignment of pump shaft.
Notify unit maintenance for
repair.
2.
Check for loose pump mounting.
Notify unit maintenance for
repair.
4. Fire pump pressure is low.
1.
Check that seacock is fully OPEN.
OPEN the seacock.
2.
Check that the fire pump strainer is clean.
Service the fire pump strainer
5. Fire pump pumps for a
Check for proper priming.
Prime the pump.
while and then quits.
6. Fire pump stalls the
1.
Check that all electrical loads are removed
Remove the electrical loads
generator engine.
from the diesel generator.
from the diesel generator
engine by turning OFF all
of the 220/110 Volt circuit
breakers.
2.
Check for misalignment of pump shaft.
Notify unit maintenance for
repair.
0044 00-1
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