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 8. High Pressure Pump, Turbocharger Troubleshooting Continued.
ITEM
MALFUNCTION
POSSIBLE CAUSES
CORRECTIVE ACTION
2
HP Pump P-5 starts and then
Open the PDP. Set the main breaker to
stops. HP Pump P-6 does
ON. Open the OCP display panel to
not start. Red stop push
expose the sub-panel (WP 0060). Start up
button light is not on.
normally. Push HP Pump start (do not
hold).
Failure of PLC Slot #4 Output card or
If contactor M505 does not pull in after a
failure of motor contactor M505 - actuating
10-second delay:
coil.
1) Open the Slot #4 wire-way cover.
Locate the O4 terminal. Push the
start button again. Check for AC 110
volts between O4 and ground after a
10-second delay
2) If voltage is not found at terminal, O4,
replace the Slot #4 output card
3) If voltage is found, replace the M505
contactor (WP 0059).
Failure of PLC Slot #2 Input card or
If the contactor pulls in momentarily and
failure of motor contactor M505 auxiliary
then drops out, find the PLC Slot #2 card.
contacts.
1) Open the Slot #2 wire-way cover.
Locate the IN12 terminal. Push the
HP Pump start button. Check for AC
110 volts between IN12 and ground
during the momentary time when the
contactor pulls in.
2) If voltage is not found at terminal
IN12, replace the M505 contactor
3) If voltage is found, replace the Slot #2
card (WP 0060).
3
HP Pump P-5 starts, HP
HP Pump P-5 or P-6 circuit breaker has
Open PDP and check CB122 and CB125
pump P-6 begins to start,
tripped.
circuit breakers. Reset as needed. If it
both pumps stop and red stop
trips again, check for shorts. Be sure that
push button light comes on.
the power source is secured (WP 0063).
1) Open the motor terminal box and
or
disconnect the power cable wires.
Check for short in the cable and in
HP Pumps will not start, or
the motor. If in the motor, replace the
stop after running. Red stop
HP Pump motor (WP 0053).
push button light is on.
2) If in the cable, pull all of the wires and
inspect. Replace the shorted wire
and any wire showing signs of
damage.
3) If the motor or cable do not show a
short, replace the circuit breaker
0034 00-27
