TM 10-4610-229-24
Table 2-2. Troubleshooting (Cont)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 3.
Check pump for prime.
Prime pump. (See TM 10-4610-229-10.)
2.
LOW OUTLET PRESSURE.
Step 1.
Check suction hose for obstruction or air leaks.
Remove obstruction. Repair or replace suction hose
(para 2-11). Prime pump. (See TM 10-4610-229-10.)
Step 2.
Check engine speed.
Adjust speed. (See TM 10-4610-229-10.)
3.
WATER DELIVERY STOPS SUDDENLY.
Step 1.
Check for incomplete priming.
Prime pump. (See TM 10-4610-229-10.)
Step 2.
Check that pump is not too high above water source.
Lower pump location.
4.
PUMP VIBRATION. ENGINE RUNNING NORMALLY.
Step 1.
Check for obstruction in water passages.
Remove obstruction. Prime pump. (See
TM 10-4610-229-10.)
Step 2.
Check impeller for broken fins.
Replace pump (para 2-22).
Step 3.
Check for misalignment of pump and engine.
Replace pump (para 2-22).
5.
WATER RUNS FROM DRAIN HOLES.
Replace pump (para 2-22).
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