TM 10-4610-239-24
TM 08580B-24/3
Table 3-1. Direct Support Troubleshooting - Continued
Malfunction
Test or Inspection
Corrective Action
BACKWASH PUMP ASSEMBLY - Continued
2. PUMP ELECTRIC MOTOR FAILS TO START WHEN ELEMENT CLEANING SWITCH IS
SET TO START - Continued
Step 2.
Shut down ROWPU. Refer to TM 10-4610-239-10. Shut down power. Reer to generator
f
manual. Set ELEMENT CLEANING switch to RUN position. Refer to backwash pump
assembly support diagram figure 3-12. Check continuity point-to-point between test points
C and F.
If there is no continuity through a wiring harness, repair wiring harness.
Refer to paragraph 3-39.
If there is no continuity through S 14, replace switch. Refer to paragraph 3-34.
If there is no continuity through K2, repair motor controller. Refer to paragraph
Step 3.
Push overload plunger on K2. Set ELEMENT CLEANING switch to START
and release. Check position of overload plunger.
If plunger stays in, go to step 4.
If plunger does not stay in, go to step 8.
3-69
