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
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 genrator
e
manual. Refer to raw water pump no. 1 assembly support diagram figure 3-10. Set RAW
WATER PUMPS NO. 1 switch to RUN position. Check continuity point-to-point between
test points A and B through S3-2 and S3-1.
If all checks indicate continuity except across terminals 2 and 3 of K3, repair
K3. Refer to paragraph 3-49.
If there is no continuity through K3, repair K3. Refer to paragraph 3-49.
If there is no continuity through S3, replace S3. Refer to paragraph 3-34.
If there is no continuity through a wiring harness, repair wiring harness. Refer to
If there is no continuity through a cable, repair cable assembly. Refer to
Step 5.
Refer to schematic diagram figure FO-3. Check for 208 V ac at K3 between terminal pairs
T1 and T2, T2 and T3, and T1 and T3.
If 208 V ac is not present on all terminal pairs, go to step 6.
If 208 V ac is present on all terminal pairs, go to step 12.
Step 6.
Refer to schematic diagram Figure FO-3. Check for 208 V ac at K3 between terminal pairs
on the top screw of each heater; left to center, center to right, and left to right.
If 208 V ac is not present on all terminal pairs, go to step 11.
If 208 V ac is present on all terminal pairs, shut down ROWPU. Refer to TM
10-4610-239-10. Shut down power. Refer to generator manual. Remove six
screws and three heaters. Replace heaters that have damaged elements. Start
ROWPU. Refer to TM 10-4610-239-10. Repeat step 5.
If 208 V ac is not present on all terminals pairs after repeating step 5, go step 7.
3-50
