OVERHAULING PROCEDURE FOR PULL OUT THE PUMP ON SINGLE STAGE CENTRIFUGAL PUMP

OVERHAULING PROCEDURE FOR PULL OUT THE PUMP ON SINGLE STAGE CENTRIFUGAL PUMP

• Remove coupling guards after getting clearance of safety aspects like electrical isolation, process lines drainage etc.

• Remove coupling spacer and loose the casing bolts connects the stuffing box frame after removing and draining oil level glass and lube oil from bearing housing.

• Pullouts back the pump from casing with care of casing gasket.

• Dismantle all parts from the pump unit as impeller, mechanical seal assembly, shaft sleeve, coupling, and bearings respectively with high care.

•  The following factors should be checked and recorded for future to estimate the performance condition of the pump, are wear ring clearance, seal compression, shaft deflection, thrust, trueness etc while or after dismantle.

• Proper tracing of parts need to any vision able damage like crack, score, break etc.

• Best is changing new one comparing reconditioning of parts.

• Assembly is the reversing procedure of dismantle as before seen.

• Before coupled alignment should be checked and corrected