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
7
Antiscalant Pump CP-2 or
Failure of Antiscale/Chlorine Pump
2)
If voltage is found, replace the Slot #2
cont
hypochlorite Pump CP-3 will
selector switch or PLC Slot #2 Input card
Input card (WP 0060).
not run with the selector
(continued).
3)
If voltage is not found, replace the
switch in the ON position
Antiscale/Chlorine Pump selector
(continued).
switch (WP 0059).
Failure of the PLC Slot #4 output card.
Continuing. If the Slot 2 Channel 3 light is
ON:
1) Open the Slot #4 wire-way cover.
Locate the O7 terminal (CP-2 failure)
or the O8 terminal (CP-3 failure).
Check for AC 110-volts between O7
or O8 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
8
Antiscalant Pump CP-2 or
Failure of the PLC Slot #4 output card.
With the TWPS operating normally with the
hypochlorite Pump CP-3 will
HP pumps on, open the OCP display panel
not run with the selector
to expose the sub-panel (WP 0060).
switch in the AUTO position.
1) Open the Slot #4 wire-way cover.
Locate the O7 terminal (CP-2 failure)
or the O8 terminal (CP-3 failure).
Check for AC 110-volts between IO7
or O8 and ground.
2) If voltage is not found, replace the
Slot #4 output card (WP 0060).
Chemical pump motor, wiring or connector
failure.
If voltage is found, continue.
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
0034 00-39
