The visual inspection should be neat and tidy, the nameplate is intact, and the grounding wire is well connected.
Disassemble the wire connecting piece in the motor terminal box, and test the insulation resistance value of the phase and phase of the motor winding and the ground between the ground and the ground with a 500V megohmmeter to be not less than 0.5 megohm.
The three-phase wires and connecting pieces in the motor terminal box should be tight and tight.
Maintenance of valves, pipes and accessories related to Forever submersible pumps:
The switches of each valve should be flexible and reliable, with no leakage inside or outside.
The check valve should be flexible and there is no water leakage inside and outside the valve.
The pressure gauge is accurate and the dial is clear.
The appearance of the pipes and accessories is neat and beautiful, without cracks, and the paint should be intact without falling off.
Jog to determine if the pump steering is correct, if it is wrong, it should be corrected.
