Liberty Pumps 260 - Manual (Page 3)

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F. For continuous operation the pump must be submerged to prevent the motor from overheating. If this
occurs, the pump will shut itself off until the motor cools to its normal temperature. Repeated overheating
may cause damage to the pump.
G. Your pump is designed to effectively pump water. Although it will usually pass small particles suspended in
water, grass, heavy mud, sand or pea gravel can clog the pump and reduce the pump’s performance. This
can usually be cleaned out by back flushing with a garden hose through the discharge. The normal
performance that can be expected is as follows:
Model Pumping Height 0’ 5’ 10’ 15’ 20’ 25’ 30’
260 Gallons/min 16 15 14 12 9 5 0
Problem Cause Correction
Pump will not run or
hum.
 Blown fuse or other interruption of
power; improper voltage.
 If blown, replace with properly sized fuse or
reset breaker; if voltage is under 108V, check
wiring size. Remove extension cord if
connected.
 Plug on power cord may not be
making contact in receptacle.
 Check security and connection. If receptacle
is corroded, have it replaced by a certified
electrician.
Pump runs or hums
but does not
remove water.
 Discharge line may be blocked or
frozen.
 Make sure line doesn’t pass through cold
areas or isn’t blocked.
 Vertical lift is beyond pump’s
capability.
 Model 260 has a maximum lift of 30’ Total
Dynamic Head.
 Inlet screen of pump is plugged or
the impeller is jammed.
 Remove the pump screen and clean inlet and
impeller.
 Anti-airlock hole is plugged with
debris.
 Clean out anti-airlock hole at base of
discharge tower.
 Pump failed to prime due to
insufficient water depth
 Prime pump by placing it in a bucket of water
or move it to a deeper area of flooded region.
Pump runs but
removes very little
water.
 Pump has met or exceeded its
maximum lift.
 Route discharge piping to a lower level. If this
isn’t possible then a larger pump may be
required.
 Vertical lift is approaching pump’s
maximum lift capability.
 Model 260 has a maximum lift capability of
30’.
 Pump’s inlet is partially blocked.  Remove volute and make sure inlet is clear of
debris.
Circuit breaker trips
or fuse blows when
pump starts.
 Fuse or breaker is too small.  A 15-amp breaker should be used.
 Other major appliance is on the
same circuit.
 Pump should be on its own circuit.
 Pump is connected to an extension
cord or wiring is inadequate.
 Have an electrician check for proper wiring.
 Defective motor or switch.  Consult factory.
3
Troubleshooting