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)
Table 3. MF Feed Pump P-3 Troubleshooting Continued.
ITEM
MALFUNCTION
POSSIBLE CAUSES
CORRECTIVE ACTION
5
MF Feed Pump P-3 comes
Automatic valves have not cycled
Complete the BIT self test (WP 0013) to
on for Fill/Hold but there is no
properly.
identify which valve is not functioning
MF Feed Flow reading on the
properly. See Automatic Valve
OCP Feed Flow indicator and
Troubleshooting for correction.
flow is not observed flowing
from the waste hose.
If pump was drained, the pump may be air
With the MF Feed Tank at least 50% full,
bound.
loosen the MF Feed Discharge Hose (F07)
coupling at the TWPS inlet connection until
water flows freely. Reconnect and repeat
the start up procedures.
6
MF Feed Pump was running,
CB111 motor circuit breaker is tripped.
Open PDP and check CB111 circuit
but stops and the RED stop
breaker. Reset as needed. If it trips again,
button light is ON.
troubleshoot for short circuits. With the
power source secured proceed as follows:
1) Remove the power pump cable at
both ends. Check for shorts between
pins in the PDP connector. If found,
use the wiring diagram to check back
along the shorted wire for the source
of the short. (WP 0067).
2) Check for shorts between power
cable connector pins. If found,
replace cable.
3) Disconnect the cable between the
motor and the junction box. Check
for shorts between pump junction box
connector pins. If found, repair the
junction box.
4) Check the motor cable connector
pins for shorts. If found, disconnect
the cable from the motor wires and
check the pins again. If a short is
found, replace the cable or notify
Direct Support to inspect and repair
the connector..
5) Check the motor wires for shorts. If
found, replace the motor (WP 0048).
6) If no shorts are found, replace the
circuit breaker (WP 0063).
0034 00-13
