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 12. Product Water System Troubleshooting Continued.
ITEM
MALFUNCTION
POSSIBLE CAUSES
CORRECTIVE ACTION
3
Distribution Pump P7 will not
CB128 ground fault breaker has tripped
3)
Set the Main Circuit Breaker to OFF.
cont
run or stops after running.
(continued).
With the power cable connected,
Green Run light is on. Red
disconnect the cable from the
stop push button light is NOT
junction box to the motor. Repeat the
on (continued).
test. If the breaker trips, clean the
junction box connector pins and the
inside of the box. Remove any
deposites 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 (WP 0058).
Damaged or corroded power cable
Remove power cable. Inspect connectors
connections.
for damage and corrosion. Replace entire
cable 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 M506 motor contactor main
Open the PDP. Set the Main breaker to
contacts corroded.
ON. Push the distribution 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 0058).
4
Distribution Pump P-7 will not
Failure of Distribution Pump Start button
Open OCP display panel to expose the
run. Green Run light does
or PLC Slot #1 Input card.
sub-panel (WP 0060). Set Main CB to ON.
not come on or pump stops
Push and hold distribution pump start.
while operating. Red stop
Check the Slot #1 LED lights. If channel 9
push button light is NOT on.
is not ON:
1) Open the Slot #1 wire-way cover.
Locate the IN9 terminal. Check for
AC 110-volts between IN9 and
ground while pushing and holding the
start button.
2) If voltage is found, replace the Slot #1
Input card (WP 0060).
3) If voltage is not found, replace the
Distribution Pump start button
0034 00-41
