Frequently Asked Questions


Impellers...

Recommended inspection to be performed at any service interval:

Impeller
Inspect for cracks or tears. Also, inspect for excessive abrasion of vane ends.
Replace annually, or if any of the conditions exist, as in the picture.

Wear Plate
Inspect for wear, flatness, and pin for fatigue.
Replace at major pump rebuild or if wear is evident to maintain pump flow
and suction performance.

Cam
Replace at minor or major pump rebuild or if pitting/wear is evident.

Cover
Replace at major pump rebuild or if wear exists to maintain pump flow
and suction performance.

Mechanical Seal
Replace at minor and major pump rebuild or if leaking.

Lip Seal
Replace at major pump rebuild or if leaking.

Shaft
Inspect for wear in area of lip seal and rubber impeller. Grooving of lip seal area
or heavy fretting of the impeller end shaft will require shaft replacement.

Bearing
Inspect for loss of grease, corrosion or rough rotation. Replace at major pump rebuild.

Inspection of Impellers