TM 10-4610-241-24
TO 40W4-13-42
Table 2-2. Unit Troubleshooting - continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
RAW WATER PUMP NO. 1 ASSEMBLY
1.
PUMP ASSEMBLY IS NOISY.
Notify Direct Support Maintenance if this malfunction occurs.
2.
PUMP ASSEMBLY RUNS HOT.
WARNING
High voltages in this equipment can cause serious injury or death. When applying power
during a test, take proper measures to ensure safety of personnel. Never work on
electrical equipment unless there is another person nearby who is familiar with the
operation and hazards of the equipment.
Step 1. Turn circuit breakers CB3 and CB4 to OFF and disconnect both raw water pumps at
junction box.
Step 2. Connect raw water pump no 1 to RAW WATER PUMP NO 2jack, J4 and turn on CB4.
If pump does not run hot now, ROWPU is defective, notify Direct
Support Maintenance.
Step 3. Turn CB4 to OFF and disconnect raw water pump no 1 at junction box.
Step 4. Disconnect cable assembly from motor of raw water pump no 1 (Paragraph 2-19)
and check cable for continuity.
a.
If pump cable is defective (open), replace cable assembly. Refer to Paragraph 2- 19).
b.
If pump cable is not defective, replace centrifugal pump of raw water pump no
1. Refer to Paragraph 2-20).
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