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. 1 ASSEMBLY - Continued
PUMP ELECTRIC MOTOR FAILS TO START WHEN RAW WATER PUMPS NO. 1 SWITCH IS
SET TO START - Continued
Step 7.
Shut down ROWPU. Refer to TM 10-4610-239-10. Shut down power. Refer to generator
manual. Refer to schematic diagram figure FO-3. Check for short circuits between junction
box ground terminal El and K3 terminals T1, T2, and T3.
If any K3 terminal is shorted to ground terminal El, go to step 8.
If no K3 terminal is shorted to ground terminal El, replace K3. Refer to paragraph 3-48.
Step 8.
Disconnect raw water pump no. 1 cable connector P3 from ROWPU. Refer to schematic
diagram figure FO:-3. Check for short circuits between P3-D and P3-A, P3-B, and P3-C.
If no pin is shorted to P3-D, go to step 9.
If any pin is shorted to P3-D, go to step 10.
Step 9.
Remove receptacle connector J3 from electrical junction box. Refer to paragraph 3-37.
Refer to schematic diagram figure FO-3. Check for a short circuit between J3-D and K3
terminals T1, T2, and T3.
If any terminal is shorted to J3-D, repair cable W7. Refer to paragraph 3-17.
If no terminal is shorted to J3-D, replace J3. Refer to paragraph 3-37.
Step 10.
Remove raw water pump no. 1 cable assembly. Refer to paragraph 2-135.
Refer to schematic diagram figure FO-3. Check for short circuits between P3-D and P3-A,
P3-B, and P3-C.
If any pin is shorted to P3-D, repair raw water pump no. 1 cable assembly.
Refer to paragraph 3-17.
If no pin is shorted to P3-D, repair raw water pump no. 1 electric motor.
Refer to paragraph 3-57.
3-51
