Pump Trouble Shooting Guide

Pump Trouble Shooting Guide


Failure to pump

Impeller jamming - Adjust impeller spacing, disassemble and clean
Suction air leak - Check and correct hose and couplings
Pump not properly primed - Prime pump correctly
Not enough head to open check valve - Consult with your pump specialist
Air leak in pumps pickup - Check and rework suction line
Blocked suction - Unblock suction

Reduced performance

Air pockets or small air leaks in suction line - Locate and correct
Obstruction in suction line or impeller - Remove obstruction
Insufficient submergence of the suction pipe - Consult with your pump specialist
Excessively worn impeller or wear ring - Replace impeller and/or wear ring

Noise

Material lodged in impeller - Dislodge obstruction
Worn bearings - Replace bearings
Impeller screw loose or broken - Replace
Cavitation - (improper suction design) Correct suction piping

Bearing failure

Suction or discharge pipe not properly supported - Correct supports
Water or contaminates entering bearings - Protect pump from environment
Lubrication to bearings not adequate - Check your manual
Wrong type of lubrication - Check your manual

© JB 2011

Add to :"Failure to Pump"

make sure you have not connected the pick up to the delivery side !!

Murachu wrote:Add to :"Failure to Pump" make sure you have not connected the pick up to the delivery side !!

Been there done that

And don't start motor without water in the pump Bye Bye seal!

someday wrote:And don't start motor without water in the pump Bye Bye seal!

That's is a good one to remember also.