TM 10-4610-239-24
TM 08580B-24/3
Table 3-1. Direct Support Troubleshooting - Continued
Malfunction
Test or Inspection
Corrective Action
CHEMICAL FEED METERING PUMP ASSEMBLY - Continued
PUMP ELECTRIC MOTOR FAILS TO START WHEN CHEMICAL FEED PUMP SWITCH IS SET TO START
Step 1.
Push overload plunger on K7. Set CHEMICAL FEED PUMP switch to START and release.
Check position of overload plunger.
If plunger stays in, go to step 2.
If plunger does not stay in, go to step 8.
Step 2.
Set CHEMICAL FEED PUMP switch to START and release. Check position of indicating plunger.
If indication plunger stays 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 chemical feed metering pump assembly support diagram figure 3-8. Hold CHEMICAL FEED PUMP switch in START
position. Check continuity point-to-point between test points A and B through S7-5 and S7-4.
If check indicates no continuity through K7, repair K7. Refer to paragraph 3-49.
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