TM 10-4610-240-24
TM 08580C-24/2
TO 40W4-13-22
Table 3-1. Direct Support Troubleshooting - continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
BOOSTER PUMP ASSEMBLY - continued
2.
BOOSTER PUMP CIRCUIT BREAKER (CB6) AND/OR OVERLOAD HEATERS TRIP.
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.
Remove power at power source, reset circuit breaker, CB6 and disconnect wires on CB6 output terminals
(T1, T2 and T3).
Step 2.
Turn on power.
If circuit breaker CB6 trips, check for bare/disconnected wires injunction box and tighten loose connections or
replace wire, trouble persists, replace CB6. Refer to paragraph 349.
Step 3.
Remove power at power source, reconnect wires to CB6, if tripped, reset heater assembly, and disconnect
wires (T1, T2 and T3) from heater assembly.
Step 4.
Turn on power.
If heaters trip, check for defective heaters, replace as necessary (para 349) and reset heater assembly If
trouble persists, replace motor starter.
Step 5.
Remove power at power source and reconnect wires to heater assembly.
Step 6.
Check pump cable for continuity and shorts.
a.
If continuity is absent through cable assembly, or cable assembly is shorted, replace cable assembly.
Refer to paragraph 3-29.
b.
If cable assembly is not defective, repair booster pump. Refer to paragraph 3-32.
3-20
