Table 19 (Continued)
Cause of Trouble
Pump parts failure
Check for broken shaft, broken bowl assembly,
loose impellers, and loose column-pipe joints.
Wrong direction of
Check for switched power leads.
Speed too low
corrosion or obstruction.
Backwash or use chemical treatment to clean.
Check static level and drawdown. Lower pump,
clean screen, and decrease pumping rate.
check for excessive bearing friction and
impeller corrosion or obstruction.
Low water level in
Check well vent. Check pump inlet for
turbulence, vortexing, or eddies. Check well
Correct instrument readings.
Check adjustment of impeller height.
Compare manufacturer's instructions with
lubricant being used.
Check for tight bearings; check for pump and