TM 10-4610-240-24
TM 08580C-2412
TO 40W4-13-22
Table 2-2. Unit Troubleshooting- continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
DISTRIBUTION PUMP ASSEMBLY
1.
PUMP MOTOR RUNS HOT.
Step 1.
Hold distribution nozzle operating lever in the fully open position and allow water to flow.
a.
If water does not flow steadily, go to step 2.
b.
If water flows steadily for 30 seconds and pump motor stays hot, replace centrifugal pump.
Refer to paragraph 2-26
Step 2.
Check suction hose for blockage.
a.
If suction hose is blocked, clean out suction hose between product water tank and pump.
b.
If suction hose is not blocked, replace centrifugal pump. Refer to paragraph 2-26.
2.
PUMP IS NOISY.
Check for loose components
a.
If components are loose, tighten securely.
b.
If no external loose components are found, replace centrifugal pump assembly. Refer to
3.
PUMP SHUTS DOWN AND/OR FAILS TO START.
WARNING
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
aid.
Step 1.
Check ifCB5 and/or K5 heater assembly injunction box are OFF.
If CB5 and/or K5 heater assembly are not OFF, go to step 3
2-40
