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4.
Do not attempt to restrict the intake side of these pumps. Restricting the intake may cause damage to the seal
and may starve the pump. If you require reduced flow rates, then place a valve on the discharge side of the pump
or if flexible vinyl tubing is used, a clamp can be used on the tubing to restrict the flow.
5.
Do not let the unit operate dry. It is designed to be cooled by pumping fluid. You may damage the seal and the
motor may fail if the pump is allowed to run dry.
6.
If the unit is going to be idle for a period of time, follow the cleaning instructions outlined in the next section. Do
7. If fused type
plug is used on 230 volt units, a 5.0 amp fuse is recommended.
7.
If using an aluminium body pump in an area with water having a high mineral content (hard water) or if other
metals (copper tubing, metal fountain heads, etc.) are present in the pond or fountain, a condition called
"galvanic corrosion" may occur. The recommended solution to this situation is the use of a sacrificial anode
attached to the pump. This anode works on the same principle as the anode found in hot water heaters and boat
motors. Contact your local distributor and ask for the model SA-1 by Little Giant.
Figure 1
SERVICE INSTRUCTIONS
MAKE CERTAIN THAT THE UNIT IS DISCONNECTED FROM THE POWER SOURCE BEFORE ATTEMPTING TO SERVICE OR
REMOVE ANY COMPONENT!
1.
This unit is permanently lubricated. Oiling is not required. Do not, in any case, open the sealed portion of the unit
or remove housing screws. The power cord on these units cannot be replaced. In case of damage the whole unit
must be replaced.
2.
Periodic cleaning of the pump parts will prolong the LIFE and EFFICIENCY of the pump. Refer to Fig. 1 for the
assembly and disassembly of the pumping head.
3.
First remove the intake screen from the pump. Then remove the three screws as indicated by the arrows. (DO
NOT remove other screws which may be exposed.)
4.
Lightly clean any corrosion or debris which may clog the impeller. Use a brush and penetrating oil and lightly
scrape to remove encrusted material.
5.
Turn the impeller by hand to make sure it turns freely. Set pump down so the pump and impeller are not
touching anything. Plug the unit into GFCI circuit for 10 seconds to see if the impeller turns; a) If it is rotating and
GFCI did not trip, unplug unit and install parts in reverse order in which they were removed. b) If it does not
rotate, if pump is tripping circuit breakers, or not operating properly after cleaning, return to Little Giant Pump
Company or its authorized service center. DO NOT attempt repairs yourself.
6.
Be certain power cord is in good condition and contains no nicks or cuts.
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