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 13. Cold Weather System Troubleshooting Continued.
ITEM
MALFUNCTION
POSSIBLE CAUSES
CORRECTIVE ACTION
10
All hose blankets and pump
Circuit breaker CB209 or ground fault
Open PDP and check circuit breaker
heat collars connected to the
breaker 209 tripped.
CB209. Reset as needed. If it trips again,
MF Feed Pump P-3 junction
troubleshoot for short circuits or ground
box remain cold.
fault. With the Main Circuit breaker OFF,
proceed as follows:
1) Remove P-3 pump junction box
power cable (if in use).
2) Set breaker to ON and Hose/Pump
Heaters switch to ON.
3) If the heater circuit breaker does not
trip, troubleshoot the P-3 pump heat
trace system for short circuit or
ground fault as applicable. Isolate
fault as follows:
a) Set Pump/Hose Heater switch to
OFF. Reconnect power cable.
Remove all heater cables. Set
switch to ON. If circuit breaker
trips, check to junction box and
the power cable.
b) Connect each of the hose
heaters and the pump heating
collar in turn to identify the failed
heater. For each, set the
Pump/Hose Heater switch to
OFF. Make the connection. Set
the switch to ON. When the
circuit breaker trips, the last
connected heater is the failed
heater.
Open circuit in power cable or connector.
Check for open circuit or corrosion.
Corroded connector.
Repair/replace as needed.
11
One heat blanket or pump
Failed connector or heat trace cable.
Check the cable for open circuit. Replace if
heating collar remains cold.
found. Check the junction box connector
All others connected to the
for open circuit. Check both connectors for
same junction box are hot.
corrosion. Repair as needed.
END OF WORK PACKAGE
0034 00-49/50 BLANK
