TM 5-4610-223-12
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
WATER PURIFICATION UNIT-Cont
Step 7.
Check for large floc particles and foam in the water in the erdlator tank caused by inadequate agitation or
leaks on the suction side of the raw water pump.
Increase the agitator mixing speed and tighten the suction hose connections. No air bubbles should
appear in the raw water sight glass.
Step 8.
Check for slurry pool remaining too high, due to excessive input flow.
Adjust the input flow valve CV-9 (fig. 2-10) to 50 gpm.
Step 9.
Check for no rotation in the slurry pool at maximum agitator speed.
Increase the input flow to at least 50 gpm.
8. CHEMICAL SLURRY FEEDER NOT SUPPLYING ENOUGH SLURRY TO ERDLATOR TANK OR FILTERS.
Step 1.
Check for insufficient water.
Adjust the variators FEI-5 (fig. 2-12) and FEI-6 (fig. 2-11) and valves CV-15 (fig. 2-12) and CV-8, (fig. 2-11).
Step 2.
Check for insufficient mixing of chemicals due to slip clutch operation.
Adjust the slip clutch (4-113).
Step 3.
Check for required adjustment.
Adjust the hand variators (fig. 2-10 and 2-11).
Step 4.
Check for chemicals clogging the feeder.
Shut down and clean out the chemicals.
4-29
