ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
0034 00
TROUBLESHOOTING PROCEDURES
UNIT TROUBLESHOOTING PROCEDURES TACTICAL WATER
PURIFICATION SYSTEM (TWPS)
THIS SECTION COVERS:
Product Water Distribution System
INITIAL SETUP:
TWPS Set Up
Maintenance Level
Unit
PRODUCT WATER SYSTEM MALFUNCTIONS
Table 12. Product Water System Troubleshooting.
ITEM
MALFUNCTION
POSSIBLE CAUSES
CORRECTIVE ACTION
1
P-7 or P-8 Pump is rotating
Pump is air bound.
Remove the distribution hose at the
but is not pumping water.
Adaptor A-08 valve and open the valve to
release the air.
Worn pump impeller or wear plate.
Adjust clearance between the impeller and
the wear plate. If severely worn, replace
impeller and wear plate (WP 0058).
2
Pump P-7 or P-8 runs noisy
Noise is at the pump: shaft clamp is loose,
Check clearance between impeller and
or rough.
impeller is rubbing on wear plate.
wear plate. Adjust as needed. Be sure
shaft clamp is tight (WP 0058).
Noise is at the motor (P-7 only): worn
Replace the motor (WP 0058).
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
Open the PDP. Locate the distribution
on.
CB128 ground fault breaker has tripped.
pump P-7 CB128 ground fault breaker. If
the blue lever is down, push it up to reset.
WARNING
If the breaker trips again, isolate the fault as
follows:
Electrical Safety. The TWPS unit must
1) Set the Main Circuit Breaker to OFF.
be shut down and the Main Circuit
Remove the power cable at the PDP.
Breaker set to OFF prior to
Check and clean the PDP connector
disconnecting the power cable. Failure
pins. Install the connector cap. Set
to observe this warning may result in
the Main Circuit Breaker to ON. Push
serious injury or death.
the Start button. If the breaker trips,
replace the circuit breaker.
2) Set the Main Circuit Breaker to OFF.
Disconnect the power cable at the
pump. Reconnect the cable at the
PDP. Cap the cable connector and
lay the cable end over the pump
frame. Set the Main Circuit Breaker
to ON. Push the start button. If the
breaker trips, clean the cable
connector pins. Repeat the test. If
the breaker trips, replace the cable.
0034 00-40
