Lubricant's name, model, main performance and refill quantity meet the requirements of technical documents;
Whether the bearing lubrication system, sealing system and cooling system are in good condition, and whether the oil and water lines of the bearing are unblocked;
Rotate the rotor of the pump 1~2, check whether the rotor has friction or stuck phenomenon;
In the vicinity of the coupling or belt guards, etc., are there any obstacles that prevent rotation;
The foundation bolts of the pump, bearing seat and motor are loose;
The valve or attachment of the pump working system shall be in the position where the load of the pump is at a minimum, and the outlet regulating valve shall be closed;
Jog the pump to see if the impeller steering is consistent with the design steering. If it is not consistent, it is necessary to make the impeller completely stop rotating and adjust the motor wiring before starting again.
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