Cause Analysis and Solution of Common Self

Self-priming pump failure one:

Analysis 1) no water or intermittent water, less water.

Solution â‘ motor is not started, eliminate circuit failure;

â‘¡ pipeline blockage, remove blockage;

â‘¢ pipeline rupture, welding repair or change;

â‘£ filter plugged, remove clogs;

â‘¤ suction port exposed water, if the pump is still not effective under the discharge? Trace ã„’ hazelnut?

â‘¥ electric pump reversal, replace the power line phase sequence;

â‘¦ pump housing seal ring, impeller damage, replacement of new parts.

Cause Analysis and Solution of Common Self - priming Pump Faults

Self-priming pump failure two:

Cause Analysis 2) The motor can not be started with buzz.

Solution â‘ a phase circuit, repair lines;

â‘¡ bearing axle, repair or replacement;

â‘¢ impeller with foreign body and pump stuck, remove foreign body;

â‘£ low voltage, adjust the voltage.

Self-priming pump failure three:

Analysis 3) the current is too large, ammeter pointer swing.

Solution â‘ rotor sweep bore, replace the guide bearing;

â‘¡ shaft and bearing relative rotation is not flexible, replacement or repair bearings;

â‘¢ due to severe thrust bearing wear, leaf rotation and seal ring phase, replace the thrust bearing or thrust plate;

â‘£ axis bending, bearing different heart, send repair shop repair.

Self-priming pump failure four:

Reason analysis 4) Insulation resistance of motor winding to ground is low. Motor windings and cable connectors or cables are damaged, replace windings, repair connectors or cables.

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