TM 10-4610-241-10
TO 40W4-13-41
Table 3-2. Operator Troubleshooting (ROWPU) - cont.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
8.
BACKWASH WATER FLOW READING DROPS TO NEAR ZERO DURING BACKWASH OPERATION;
BACKWASH PUMP LAMP IS ON. cont.
Step 6. Check that backwash pump is primed.
Prime backwash pump.
9.
DISTRIBUTION NOZZLE DELIVERS LITTLE OR NO PRODUCT WATER; DISTRIBUTION PUMP LAMP IS ON.
Step 1. Check for kinked hoses.
Unkink hoses.
Step 2. Check for water level below distribution pump intake in product water tank.
a. Patch any leaks in product water tanks (refer to TM 5-5430-227-12&P/TO 37A12-1-121).
b. Continue operations to produce product water.
Step 3. Check for loose hose connections, leaking hose, or gaskets.
a. Tighten loose connections.
b. Replace defective gaskets.
c. Replace leaking hose.
Step 4. Check distribution nozzle for broken parts or inoperative handle.
Replace defective distribution nozzle.
10.
PUMP LAMP ON CONTROL BOX ASSEMBLY DOES NOT LIGHT WHEN SWITCH IS SET TO START.
NOTE
Step 1 and 2 applies only to normal start of the raw water pump. If other pump lamps do not light
when started in proper order, go to step 3.
Step 1. Ensure the EMERGENCY STOP button (33, figure 2-5) is pulled out.
Pull EMERGENCY STOP button out.
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