Normal use after 2000 hours, the pump should be sent to the local repair station, according to the
following steps of electric pump maintenance, and regular maintenance should be conducted as per
the following steps:
Disassembly: Check all wearing parts, such as the bearing, mechanical seal and impeller, flow
switch, pressure switch, pressure tank, etc., and conduct replacement timely in case of damage.
VIII. Maintenance
1. Regularly check the insulation resistance between the electric pump winding and the stator
housing, when it is close to the working environment, the insulation resistance shall not be lower than
5MΩ, otherwise you must take relative measures and use it when the requirements are reached.
2.Before conducting any maintenance operation, you should cut off the power to ensure that the
motor will not operate due to occasional operation.
4
6
5
4
6
5
When the pump is used for pumping hot or hard
water, or it is used in aging pipelines, you need to
regularly clean the foreign matters on the check
valve and filter screen to avoid the failure of the
flow switch.
After installation and use, you shall
remove and dispose the packing
materials according to the local law.
Foam
WARNING
WARNING
Impeller
Bearing
Flow Switch
Pressure Tank
Pressure Switch
Mechanical Seal
Impeller
Bearing
Flow Switch
Pressure Switch
Pressure Tank
Mechanical Seal
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