ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
0033 00
TROUBLESHOOTING PROCEDURES
OPERATOR/CREW TROUBLESHOOTING PROCEDURES
Table 3. MF Feed Pump P-3 Troubleshooting Continued.
ITEM
MALFUNCTION
POSSIBLE CAUSES
CORRECTIVE ACTION
6
MF Feed Pump P-3 was
Contactor M502 Thermal Overload has
If the failure repeats, check for binding of
cont.
running, but stops and the
tripped (continued).
the motor or pump. If shaft cannot be
RED stop button light is ON
turned freely by hand remove the hoses
(continued).
and adaptors. Check for and remove any
debis in the pump. If debris is not found,
notify Unit Maintenance.
7
MF Feed Pump P-3 leaks
Worn or damaged shaft seal.
Notify Unit Maintenance to replace shaft
water along the shaft.
seal.
8
MF Feed Pump P-3 runs
Missing or damaged gasket on MF pump
Replace gasket with one from BII (Table 2,
noisy or rough.
suction.
Strainer S-1 sucked into MF feed pump
Reorient the S-1 strainer and the raw water
suction hose when tank level dropped too
supply hose so that the strainer is not
low.
pushed towards the tank outlet during
operation.
Worn motor bearings.
Notify Unit Maintenance to replace motor.
9
MF Fill and Hold Flow is less
MF Feed Pump is air locked
With the MF Feed Tank partially full,
than 210 gpm at first startup
remove the pump discharge hose and allow
after fully draining.
the water to flow for a short time.
0033 00-11
