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
5
Distribution pump P-7 was
Contactor M506 Thermal Overload has
Shut down to standby. Open the PDP and
cont.
running, but stops and the
tripped.
locate contactor M506 (WP 0011). Push in
RED stop button light is ON
the Blue overload reset button (WP 0063).
(continued).
Close the PDP and start the pump. If noise
is heard from the pump, refer to #2 above.
If the failure repeats,
1) Check for binding of the motor or
pump. If shaft cannot be turned
freely by hand, remove the pump
from the motor. If the motor shaft
will not turn, replace the motor. If the
motor shaft turns, complete the
dissassembly of the pump, clean the
pump, and replace worn parts. After
assembly, be sure that the motor
shaft turns freely (WP 0058).
2) Open the PDP. Leave the Main CB
off. Check for loose wires:
At the top of the contactor
At the bottom of the thermal
overload.
At EMP shunts V128, 129 and
130.
3) Push the contactor in by hand and
hold. Check for continuity between
the top and bottom connections. If
not found on all legs, replace the
contactor and thermal overload (WP
4) Open the connection box on the
motor and check for loose wires.
5) Open the junction box on the pump
skid and check for loose wires.
6) If the fault is not identified, replace
the motor (WP0058).
6
Distribution Pump P-7 leaks
Worn shaft seal assembly.
Replace pump seal assembly (WP 0058).
water along the shaft.
7
Distribution Pump P-7 leaks
Deteriorated inlet flapper assembly or
Replace inlet flapper assembly or outlet
water at the inlet or outlet
outlet flange gasket.
flange gasket (WP 0058).
flange.
0034 00-43
