Operation Testing - Little Giant 5 Serie Manuel Du Propriétaire

OPERATION TESTING

Testing Manual Pump Operation
OPERATION TESTING
Risk of damage to pump or other equipment.
• Always check the power cord and electric receptacle for damage or corrosion before each use. The power cord on
these units cannot be replaced. If damaged, replace the pump.
• Do not let the unit run dry (without liquid). It is designed to be cooled by pumping fluid. The seal may be dam-
aged and the motor may fail if the pump is allowed to run dry.
• Do not let the unit freeze. Freezing may cause cracking or distortion that may destroy the unit.
Testing Manual Pump Operation
1. Plug the power cord directly into an electrical outlet or switch on power at the junction box.
2. Confirm that the pump is functioning as intended.
• A pump with screen will remove water within 1/8 inch.
• A pump without screen will remove water within 1/16 inch.
3. Unplug the unit as soon as the pump stops pumping water or the suction sound changes.
• If the unit is going to be idle for a period of time, follow the cleaning instructions in
Service" on page
Testing Automatic Pump Operation
Some pump models are equipped with a diaphragm switch. For the switch to function properly, it must
be is vented to the atmosphere through a breather tube routed through the pump's power cord.
1. Place the pump in an empty test basin.
2. Connect the pump to power with correct voltage. Refer to the pump nameplate.
• If there is a valve on the discharge line, be sure the it is open.
3. Run water into the basin until the pump is activated. Do not run the pump without water.
4. Ensure the pump and its control switch are functioning as intended.
• If the pump doesn't turn on, refer to
5. Confirm that the ON/OFF levels are within specification.
• A pump with screen will remove water within 1/8 inch. A pump without screen will remove water
within 1/16 inch.
6. Allow the pump to operate through several ON/OFF cycles.
4
5.
"Testing the Diaphragm Switch" on page
"Periodic
5.