TM 10-4610-310-14
OPERATOR MAINTENANCE
LIGHTWEIGHT WATER PURIFIER
TROUBLESHOOTING PROCEDURES
RAW WATER SERVICE PUMP
GENERAL
The table lists the common malfunctions that you may find during the operation or maintenance of the
Lightweight Water Purifier (LWP) service pump (raw water) assembly. You should perform the tests/inspections
and corrective actions in the order listed.
This manual cannot list all malfunctions that may occur, nor all tests or inspections and corrective actions. If a
malfunction is not listed or is not corrected by listed corrective actions, notify your supervisor.
MALFUNCTION
TEST / INSPECTION
CORRECTIVE ACTION
Check for power to the control
If power is not available see WP
module
Replace light bulb (WP 0102 00).
1. Pump light not coming on at the
Test pump light (WP 0046 00).
Notify unit maintenance
control panel
Reset the motor starter module and
Notify unit maintenance if it trips
all circuit breakers (WP 0046 00).
again
Turn the power off and Inspect the
Tighten all connection. Replace
cable and connection for looseness
cable with a new one if damaged
or damage
Ensure that the generator is working
Inspect current and voltage
properly
outputs (TM 9-6115-639-13)
Isolate the problem to the pump
2. Pump light is on but pump is not
1. Ensure that the distribution
operating or operating below
pump works.
capacity
2. Connect the dist. pump
Notify unit maintenance
cable to the raw water
See WP 0078 00 for unit level
pump.
troubleshooting.
3. Turn on the dist. pump
switch, if the pump does not
come on check the
electrical connector on the
pump.
Loss of prime
Prime the pump. See WP 0008 00.
Kink, loose connections or blockage
Remove blockage or kink. Ensure
in the raw water hose
the pipes are connected securely.
Inspect the 10-mesh screen in the
Clean the 10 mesh screen or
3. Pump operates but produces
female camlock for damage or
replace if damaged (WP 0110 00)
little or no water
blockage (WP 0110 00)
Check the elevation of the raw
Relocate the raw water pump
water pump from the source water
closer to the source water or
or the number of raw water hose
reduce the number of raw water
sections
hose sections
Reapply thread tape. Replace
Tighten connections. Check
4. Leaks in fittings
damaged fittings. (WP 0110 00).
Camlock gaskets for damage.
Notify unit maintenance.
END OF WORK PACKAGE
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