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 2.
Set RAW WATER PUMPS NO. 2 switch to START and release. Check position of
indicating plunger.
If indicating plunger is out, go to step 3.
If indicating plunger goes in but comes out when switch is released, go to step 4.
If indicating plunger goes in and stays in, go to step 5.
Step 3.
Shut down ROWPU. Refer to TM 10-4610-239-10.Shut down power. Refer to generator
manual. Refer to raw water pump no. 2 assembly support diagram figure 3-11. Hold RAW
WATER PUMPS NO. 2 switch in START position. Check continuity point-to-point between
test points A and B through S4-5 and S4-4.
If there is no continuity through K4, repair K4. Refer to paragraph 3-49.
If there is no continuity through S4, replace S4. Refer to paragraph 3-34.
If there is no continuity through a wiring harness, repair wiring harness.
Refer to paragraph 3-39.
If there is no continuity through a cable, repair cable assembly. Refer to
Step 4.
Shut down ROWPU. Refer to TM 10-4610-239-10. Shut down power. Refer to generator
manual. Refer to raw water pump no. 2 assembly support diagram figure 3-11. Hold RAW
WATER PUMPS NO. 2 switch in START position. Check continuity point-to-point between
test points A and B through S4-2 and S4-1.
If all checks indicate continuity except across terminals 2 and 3 of K4, repair
K4. Refer to paragraph 3-49.
If there is no continuity through K4, repair K4. Refer to paragraph 3-49.
If there is no continuity through S4, replace S4. Refer to paragraph 3-34.
If there is no continuity through a wiring harness, repair wiring harness.
Refer to paragraph 3-39.
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