MAINTENANCE
Priming and Starting the Pump
3
Priming and Starting the Pump
1.
Pumps are self-priming and should prime themselves within 30 seconds after pump is started.
•
Wetting the impeller with pumped fluid and keeping the impeller coated with petroleum jelly will
lengthen its life and improve priming action.
IMPORTANT:
Running the impeller dry for as little as 30 seconds can ruin the impeller. Keep suction
line as short as possible.
NOTE:
An easy way to prime the pump (wet the impeller) is to fill the discharge hose, elevate the hose
slightly to retain water, and start the pump. The water behind the impeller will seal the pump and it will
prime almost immediately.
2. To operate the pump, connect the lead wires to a 12-volt battery in good condition, such as the type
used in cars, boats, etc.
•
First, connect the
Red
clamp to the
Positive (+)
battery terminal.
•
Connect the
Black
clamp to the
Negative (–)
battery terminal last.
If pump is to be connected to battery that is installed in a vehicle,
connect the pump’s red lead to the battery positive (+) terminal and
the black lead to a ground away from the battery, such as the metal
of the vehicle. Always connect the negative (–) lead last.
3. To stop pump operation, disconnect the leads from the battery:
•
Always remove the
Black
clamp from the grounded location first.
•
Then, disconnect the
Red
clamp from the battery.
MAINTENANCE
Before each use, inspect the pump for loose screws, misalignment of impeller, cracked or broken parts,
damaged lead wires, and loose or leaking hoses. Any problems should be corrected before pump is
returned to service. Only qualified electricians or servicemen should attempt to repair this unit.
Impeller Replacement
1.
Remove cover plate mounting screws.
2. Remove cover plate and cover plate gasket.
3. Slide damaged or worn impeller off motor shaft.
4. Clean the inside of the pump head and the cover gasket sealing surface. Make certain there are no for
-
eign materials that would obstruct the impeller’s operation.
5. Apply petroleum jelly or similar lubricant to the inside of the pump head and the outside diameter of
the impeller.
6. Align the flat on the inside of the impeller shaft bore with the flat on the motor shaft. Push the impeller
into place, while twisting the impeller vanes in a clockwise rotation.
7. Place a new gasket on the pump head face, align holes and replace cover. Tighten screws evenly.
Risk of death, personal injury, or property damage due to explosion or fire.
•
When attaching pump lead wires to battery terminals, be sure that the area (bilge of a boat, for instance) is
adequately ventilated to prevent an explosion or fire from explosive or flammable vapors that may be present.
IMPORTANT:
Low voltage may cause critical over
-
heating and premature failures. To avoid this, be sure
battery voltage is maintained, and observe recom
-
mended wire size during installation.
When using leads longer than those supplied, ensure
that the wire is adequately sized:
Up to 12 ft. (3.7 m) – 14 AWG; 13 to 24 ft. (4-7.3 m) –
12 AWG; 25 to 36 ft. (7.6-11 m) - 10 AWG.
Risk of personal injury or property damage.
•
Disconnect from 12-volt power source and allow to cool completely before servicing or inspecting the pump for
any reason.
