Quantcast Table 2-2. Troubleshooting - CONT - TM-55-1905-223-24-110036

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TM 55-1905-223-24-11
Table 2-2. Troubleshooting - CONT
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
16. Large amounts of grease or oil on motor surfaces.
STEP 1.
Check for overheating due to defective pump. Replace appropriate centrifugal pump
(paragraph 2-20, 2-21, or 2-22).
17. Sanitary unit working but processes slowly.
STEP 1.
Check for partial restriction in sewage lines. Locate restriction and clear (TM 55-1905-
223-24-18).
18. Leakage from treatment tank cover.
STEP 1.
Check for loose capscrews in cover. Tighten as necessary using the sequence shown
STEP 2.
Check for defective gasket. Remove tank cover and replace the gasket (paragraph 2-
11).
19. No backwash water being supplied to the unit (proper reading on the backwash gauge).
STEP 1.
Check to see if auxiliary pump is not on line. Check auxiliary pump. Place on line (TM
55-1905-223-10).
STEP 2.
Check to see if backwash switch is in the control module in the  WITHOUT
BACKWASH position. Place switch in the WITH BACKWASH position (paragraph 2-
6).
STEP 3.
Check for loose connection or broken wiring to the backwash solenoid valve. Check
connection and wiring to the solenoid valve and correct as necessary (paragraph 2-28).
STEP 4.
Check for defective backwash solenoid valve. Replace the solenoid valve (paragraph
2-18


 


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