Testing Automatic Pump Operation; Maintenance; Periodic Service - Little Giant 5.5 Serie Manuel D'utilisation

Testing Automatic Pump Operation

The 5.5-ASPA automatic pumps are equipped with an integral float-operated mechanical switch. When
these pumps are installed in a basin with a sealed cover, switch operation cannot be observed. The basin
cover will usually have a spare hole that is plugged with a rubber plug. This plug can be removed and switch
operation can be observed. To test system operation, follow these steps:
1. Plug the power cord into a grounded receptacle with voltage consistent with the pump voltage, as indi-
cated on the pump nameplate.
2. Be sure the gate valve in the discharge line is open.
3. Run water into the basin until the pump is activated. Do not attempt to run the pump without water;
this could result in permanent damage to the pump.
4. Confirm that the pump and its float switch are functioning as intended.
5. Confirm that the ON/OFF levels are within specification, and confirm that no potential obstructions
exist that could inhibit switch operation.
6. Confirm that there are no leaks in the pump discharge plumbing and main home drain pipe plumbing.
7. While the pump is running, make sure a stream of water is escaping from the air bleed hole. If not, clear
the hole of any deposits or debris.
8. Allow the pump to operate through several on/off cycles.

MAINTENANCE

Risk of severe injury or death by electrical shock, high temperatures, or
pressurized fluids.
• Always unplug the pump power cord in addition to removing the fuse or shutting off the circuit
breaker before working on the pump or switch.
• Let pump cool for a minimum of 2 hours before attempting to service. Submersible pumps can
become pressurized and hot under normal operating conditions.
Risk of damage to pump or other equipment.
• This unit is permanently lubricated. Oiling is not required. Do not open the sealed portion of the unit
or remove housing screws.
• Do not remove the motor housing cover.
• Do not remove the impeller
• Warranty is void if the motor housing cover, impeller, or seals have been removed. Repairs on the
motor or impeller require special tools.

Periodic Service

Inspect and test the pump system condition and operation every three months — more frequently in heavy
use applications. The motor housing of the pump is completely sealed and requires no service. Disassembly
of the motor housing or alteration of the power cord voids all warranty. Let the pump cool for a minimum of
2 hours before attempting to service. Submersible pumps can become pressurized and hot under normal
operating conditions.
1. Check the power cords and electrical outlet for damage or corrosion. The power cord on these units
cannot be replaced. In case of damage, the whole unit must be replaced.
2. Remove all debris (gravel, sand, floating debris, etc.) from the basin.
3. Check the pump system components (basin, pump, switch, etc.) for any build-up (sludge, sediment,
minerals, etc.) that would inhibit functionality of the components. If significant, remove build-up or
replace affected components.
4. Confirm that all flexible coupling hose clamps are fully engaged with plumbing and fully tightened.
5. Test operation of the pump system. Refer to "Operation Testing" on page
Testing Automatic Pump Operation
6.
MAINTENANCE
7