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
8
All hose blankets and pump
Circuit breaker CB211or ground fault
Open PDP and check circuit breaker CB
heat collars connected to the
breaker 211 tripped.
211 (WP 0011). Reset as needed. If it trips
raw water pump junction
again, troubleshoot for short circuits or
boxes remain cold.
ground fault. With the Main Circuit breaker
OFF, proceed as follows:
Circuit breaker CB211or ground fault
1)
Remove P-1 pump junction box
breaker 211 tripped (continued).
power cable (if in use). Set breaker
to ON and Hose/Pump Heaters
switch to ON. If the heater circuit
breaker does not trip, troubleshoot
the P-1 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.
2)
If the heater circuit breaker trips,
troubleshoot the P-2 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.
0034 00-47
