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 1. Raw Water System Troubleshooting - Continued.
ITEM
MALFUNCTION
POSSIBLE CAUSES
CORRECTIVE ACTION
3
Raw Water Pump P2 will not
CB106 ground fault breaker has tripped.
Open the PDP. Locate the raw water pump
cont.
run or stops after running.
P-2 CB106 ground fault breaker (WP 0011).
Green Run light is on. Red
If the blue lever is down, push it up to reset.
WARNING
stop push button light is NOT
If the breaker trips again, isolate the fault as
on.
follows:
(Continued)
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, replace the cable or
notify Direct Support to inspect and
repair the failed connector.
3) Set the Main Circuit Breaker to OFF.
With the power cable connected,
disconnect the cable from the
junction box to the motor. Repeat the
test. If the breaker trips, clean the
junction box connector pins and the
inside of the box. Remove any
deposits and corrosion.
4) Clean the motor cable connector pins
and connect to the junction box.
5) If the breaker continues to trip,
replace the motor (WP0048).
Damaged or corroded power cable
Remove power cable. Notify Direct Support
connections.
to replace the connector if damage found.
Clean connector pins if corroded.
Damaged pump power cable.
Test electrical continuity between connector
ends. Replace cable if continuity is not
observed.
Corroded pump skid junction box
Clean corroded connectors; repair loose
connectors, loose wire inside junction box.
wires.
Failure of M501 motor contactor main
Open the PDP. Set the Main breaker to
contacts corroded.
ON. Push the raw water pump start button.
Check the voltage between the contactor
output terminals and ground. If one or
more do not show voltage, replace the
contactor (WP 0063).
Motor windings have failed.
Continuing, if voltage is found, replace
motor (WP 0048).
0034 00-3
