Table 2-2. Unit Troubleshooting - continued
TEST OR INSPECTION
RAW WATER PUMP NO. 1 ASSEMBLY
PUMP IS NOISY.
Check for loose external pump components.
If external components are loose, tighten them.
If no loose external components are found, replace centrifugal pump Refer to paragraph 2-22.
PUMP RUNS HOT.
Replace centrifugal pump assembly (paragraph. 2-22), if this condition occurs.
PUMP SHUTS DOWN AND/OR FAILS TO START.
High voltages in this equipment can cause serious injury or death When applying
power during a test, take proper measures to ensure personal safety. Never work on
electrical equipment unless there is another person nearby who is familiar with the
operation and hazards of the equipment and who is competent in administering first
Disconnect pump cable assembly at J3 (RAW WATER PUMP NO. 1 jack) and temporarily connect to J4
(RAW WATER PUMP NO. 2 jack).
If pump works now, notify Direct Support Maintenance.
Check if CB3 and/or K3 heater assembly injunction box are OFF.
If CB3 and/or K3 heater assembly are OFF, go to step 4.
Disconnect pump at RAW WATER PUMP NO. 1 jack, J3 and check for 208 VAC three phase power.
If 208 VAC is measured in all three tests (A-B, B-C, A-C), notify Direct Support Maintenance.
Remove power at power source and check pump cable assembly for continuity and shorts.