ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
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TROUBLESHOOTING PROCEDURES
OPERATOR/CREW TROUBLESHOOTING PROCEDURES
Table 1. Raw Water System Troubleshooting - Continued.
ITEM
MALFUNCTION
POSSIBLE CAUSES
CORRECTIVE ACTION
4
Raw Water Pump P2 will not
Failure of Raw Water Pump #2 Start
Notify Unit Maintenance.
run. Green Run light does
button or PLC Slot #1 Input card.
not come on or pump stops
while operating. Red stop
Failure of PLC Slot #4 Output card or
Notify Unit Maintenance.
push button light is NOT on.
failure of the motor contactor actuating
coil failure.
Failure of PLC Slot #2 Input card or M501
Notify Unit Maintenance.
motor contactor auxiliary relay.
5
Raw Water Pump P-2 was
CB106 motor circuit breaker is tripped.
Open PDP and check CB106 circuit
running, but stops and the
breaker (WP 0011). Reset as needed. If it
RED stop button light is ON.
trips again, notify Unit Maintenance to
troubleshoot for short circuits.
Contactor M501 Thermal Overload has
Shut down to standby. Open the PDP and
tripped.
locate contactor M501 (WP 011). Push in
the Blue overload reset button.
Close the PDP and start the pump. If noise
is heard, refer to #2 above.
If the failure repeats, check for binding of
the motor or pump. If shaft cannot be
turned freely by hand remove the hoses
and adaptors. Check for and remove any
debis in the pump. If debris is not found,
notify Unit Maintenance.
6
Raw Water Pump P1 or P2
Worn shaft seal assembly.
Notify Unit Maintenance to replace pump
leaks water along the shaft.
seal assembly.
7
Raw Water Pump P1 or P2
Deteriorated inlet flapper assembly or
Notify Unit Maintenance to replace inlet
leaks water at the inlet or
outlet flange gasket.
flapper assembly or outlet flange gasket .
outlet flange.
8
Cyclone separator has no
Cyclone is overloaded with too much
Operate cyclone with valve V-104 fully
flow through the drain or raw
sand.
open.
water flow through the
cyclone is restricted.
Cyclone is plugged with sand.
Close Raw Water Flow Valve V-107 and
fully open the Cyclone Blowdown Flow
Valve V-104 to blow sand out of the
cyclone. If this fails to clear the cylcone,
remove cyclone drain adaptor A-03. If this
doesn't work, poke into the cyclone drain
using a piece of wire to clear sand out of
the cyclone. If the cyclone is still plugged,
pump clean water, such as product water
from the distribution tanks, into the cyclone
discharge and out the cyclone inlet to the
ground.
Cyclone has an internal failure.
Remove the cyclone from service.
Continue operation. Replace the cyclone.
9
Insufficient raw water flow to
Partially clogged floating inlet strainer.
Clean the floating inlet strainer.
maintain MF feed tank level
even with flow control valve
P1/P2 pump is not running.
See corrective action for P1/P2 pump
fully open.
malfunction .
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