TM 10-4610-239-24
TM 08580B-24/3
Table 3-1. Direct Support Troubleshooting - Continued
Malfunction
Test or Inspection
Corrective Action
RAW WATER PUMP NO. 2 ASSEMBLY - Continued
PUMP ELECTRIC MOTOR FAILS TO START WHEN RAW WATER PUMPS NO. 2 SWITCH IS SET TO START -
Continued
Step 7.
Shut down ROWPU. Refer to TM 10-4610-239-10. Shut down power. Refer to enerator
g
manual. Refer to schematic diagram figure FO-3. Check for short circuits between junction
box ground terminal El and K4 terminals T1, T2, and T3.
If any K4 terminal is shorted to ground terminal El, go to step 8.
If no K4 terminal is shorted to ground terminal El, replace K4. Refer to paragraph 3-48.
Step 8.
Disconnect raw water pump no. 2 cable connector P4 from ROWPU. Refer to schematic
diagram figure FO-3. Check for short circuits between P4-D and P4-A, P4-B, and P4-C.
If no pin is shorted to P4-D, go to step 9.
If any pin is shorted to P4-D, go to step 10.
Step 9.
Remove receptacle connector J4 from electrical junction box. Refer to paragraph 3-37.
Refer to schematic diagram figure FO-3. Check for a short circuit between J4-D and K4
terminals T1, T2, and T3.
If any terminal is shorted to J4-D, repair cable W8. Refer to paragraph 3-17.
If no terminal is shorted to J4-D, replace J4. Refer to paragraph 3-37.
Step 10.
Remove raw water pump no. 2 cable assembly. Refer to paragraph 2-134.
Refer to schematic diagram figure FO-3. Check for short circuits between P4-D and P4-A, P4-B,
and P4-C.
If any pin is shorted to P4-D, repair raw water pump no. 2 cable assembly.
Refer to paragraph 3-17.
If no pin is shorted P4-D, repair raw water pump no. 2 electric motor. Refer to
3-59
