ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
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TROUBLESHOOTING PROCEDURES
OPERATOR/CREW TROUBLESHOOTING PROCEDURES
THIS SECTION COVERS:
Product Water System
INITIAL SETUP:
TWPS Set Up
Maintenance Level
Operator
PRODUCT WATER SYSTEM MALFUNCTIONS
Table 12. Product Water System Troubleshooting.
ITEM
MALFUNCTION
POSSIBLE CAUSES
CORRECTIVE ACTION
1
Pump is rotating but is not
Pump is air bound.
Remove the distribution hose at the
pumping water.
Adaptor A-08 valve and open the valve to
release the air.
Worn pump impeller or wear plate.
Notify Unit Maintenance to adjust clearance
between the impeller and the wear plate or
replace if worn.
2
Pump P-7 runs noisy or
Noise is at the pump: shaft clamp is loose,
Notify Unit Maintenance to check clearance
rough.
impeller is rubbing on wear plate.
between impeller and wear plate and adjust
as needed.
Noise is at the motor: worn bearings.
Notify Unit Maintenance to replace the
motor.
3
Distribution Pump P-7 will not
At first start up, circuit breaker CB128
Set CB to On position (black handle up)
run or stops after running.
manually set to OFF position (black
Green Run light is on. Red
handle down).
stop push button light is NOT
on.
CB128 ground fault breaker has tripped.
Open the PDP. Locate the distribution
pump P-7 CB128 ground fault breaker
WARNING
it up to reset.
Electrical Safety. The TWPS unit must
If the breaker trips again, isolate the fault as
be shut down and the Main Circuit
follows:
Breaker set to OFF prior to
1) Set the Main Circuit Breaker to OFF.
disconnecting the power cable. Failure
Remove the power cable at the PDP.
to observe this warning may result in
Check and clean the PDP connector
serious injury or death.
pins. Install the connector cap. Set
the Main Circuit Breaker to ON. Push
the Start button. If the breaker trips,
notify Unit Maintenance to replace
the circuit breaker.
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