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 11. Chemical System Troubleshooting Continued.
ITEM
MALFUNCTION
POSSIBLE CAUSES
CORRECTIVE ACTION
5
Bisulfite Pump CP-1 will not
Failure of the PLC Slot #4 output card
If voltage is found, continue:
cont.
run with selector switch in ON
(continued).
1) Check the connections in the junction
position (continued).
box. Repair as needed.
2) With electrical power and the pump
Chemical pump motor, wiring or connector
selector switch ON, check for voltage
failure.
at the junction box. If voltage is not
found, troubleshoot the wiring for
open circuits.
3) If voltage is found, replace the pump
6
Bisulfite Pump CP-1 will not
Speed switch is in OFF position.
Set speed switch to 70%.
run with selector switch in
AUTO position.
Failure of Bisulfite Pump selector switch or
Open OCP display panel to expose the
PLC Slot #2 Input card.
sub-panel (WP 0060). Check the Slot #2
LED lights. If channel 1 is not ON:
1) Open the slot #2 wire-way cover.
Locate the IN1 terminal. Check for
AC 110-volts between IN1 and
ground.
2) If voltage is found, replace the Slot #2
Input card (WP 0060).
3) If voltage is not found, replace the
Bisulfite Pump selector switch
Failure of the PLC Slot #4 output card.
Continuing. Raw water pump P-2 must be
ON. If the Slot 2 Channel 1 light is ON:
1) Open the Slot #4 wire-way cover.
Locate the O6 terminal. Check for
AC 110-volts between O6 and
ground.
2) If voltage is not found, replace the
Slot #4 output card (WP 0060).
Chemical pump motor, wiring or connector
If voltage is found, continue:
failure.
1) Check the power connector on the
cord and in the junction box. Repair
as needed.
2) With electrical power and the pump
selector switch ON, check for voltage
at the junction box pins. If voltage is
not found, troubleshoot the wiring for
open circuits.
3) If voltage is found, replace the pump
7
Antiscale Pump CP-2 or
Speed switch is in OFF position.
Set speed switch to 70%.
hypochlorite Pump CP-3 will
not run with the selector
Failure of Antiscale/Chlorine Pump
Open OCP display panel to expose the
switch in the ON position.
selector switch or PLC Slot #2 Input card.
sub-panel (WP 0060). Check the Slot #2
LED lights. If channel 3 is not ON:
1) Open the Slot #2 wire-way cover.
Locate the IN3 terminal. Check for
AC 110-volts between IN3 and
ground.
0034 00-38
