12
Trial Operation Float Switch
1. Direct the float switch downward.
2. Raise the float to its highest location. This will cause the pump to start.
3. Next, return the float switch to its original position. This will cause the pump to stop
4. Perform steps (2) and (3) consecutively two or more times to verify the operation.
Operation
HOT SURFACE HAZARD
Do not touch the product with bare hands during or immediately after the operation, as the product may become
very hot during operation. Failure to observe this caution may lead to being burned.
CAUTION
•
Do not run the pump dry or operate it with its gate valve closed, as doing so will damage the
product, which may lead to electrical leakage or electrical shock.
•
Pollution of the liquid could occur due to leakage of lubricants. Never use the product for potable
water.
1. Pay attention to the water level during operation.
2. Do not operate the pump at the lowest water level longer than 30 minutes. For details on the lowest water
level, refer to the dimensioning drawing, which is provided separately.
3. If the built-in motor safety is activated, the pump will shut down and restart automatically.
Regular checkups and preventive maintenance will ensure a more reliable and safe operation. An initial
inspection of the pump within 3 to 4 months after installation is recommended.
Subsequent inspections/maintenance can be carried out every 6 months.
WARNING
•
Always disconnect and lock out the pump from the power supply before inspecting the pump.
•
Make sure that the pump cannot roll or fall over to injure people and damage property.
•
Rinse the pump thoroughly with clean water before working on the pump.
•
The pump should not be activated if it is partially dismantled.
Maintenance Requirements
•
Allow all system and pump components to cool before handling them.
•
Make sure that the pump and its components have been thoroughly cleaned.
•
Inspect and verify that there is no damage on the pump exterior, and that the bolts and nuts have
not loosened.
•
Do not open any vent or drain valve or remove any plugs while the system is pressurized.
•
Make sure the pump is isolated from the system.
Maintenance General Guidelines
•
Clean all parts thoroughly, especially O-rings grooves.
•
Change all O-rings, and gasket.
•
During assembly or service of the pumps, it is recommended that the screws be tightened to
approximately 6- Nm (4.5 6 ft-lb). The tightening torque ensures the parts are correctly fastened and
that the pump will operate as intended
Maintenance and Inspection
