Shaft Maintenance/Replacement; Pump Disassembly - Pentair BERKELEY B85580 Manuel Du Propriétaire

Procedure and parts may vary slightly
depending on pump model.
GENERAL
• Remove volute to expose impeller.
• Peel off old volute O-Ring and discard.
• Shaft assembly of bearing frame pumps should be
periodically (annually minimum) torn down for inspection of
worn parts and cleaning. Most importantly, to check shaft
sleeve and bearings for pitting. Replace worn components
as necessary. Parts may be ordered sepa rately as required,
or for some models, shaft kits are available that are
completely assembled and ready for installation.

PUMP DISASSEMBLY

• Remove packing gland and packing arrangement as
described in Page 20.
• Remove pump volute and impeller as described on Page 21.
• Remove outer bearing cap and slide shaft assembly from
bearing bracket.
• Clean and inspect all components.
Page 22
Maintenance

Shaft Maintenance/Replacement

Make sure bearings are clean
Outer
Bearing
Cap
Bearing Frame
(Bracket)
Inner
Bearing
Cap
Slinger
5789 0208
SHAFT INSTALLATION
• Thoroughly steam clean or solvent wash the bearing cavity
of bracket to remove old grease and dirt. Check surface of
bracket for cracks, extreme corrosion, or other defects.
• Coat the bearing bores of bracket with oil. Orient shaft
assembly in the direction shown above. Slide shaft and
bearing assembly into bearing bracket. Do not force them!
When end of pump shaft comes through inside opening of
bearing cavity, place oil seal and water slinger over end
of shaft. If packing gland or seal retainer is not of the split
variety, place it over the shaft at this time as well. Slide
shaft on through stuffing box until the first bearing makes
contact with the bracket. Carefully align bearing with the
bearing bore and press or tap bearing assembly into place.
Do not use excessive force.
NOTE: Be sure bearing bores and bracket area are clean and
free of contamination or early bearing failure may occur.
• Reinstall outer bearing cap.
• Rotate pump by hand, 10-12 rotations.
• Reassemble pump parts and reinstall unit to piping system.
Refer to Installation section in this manual for correct
procedure.
BE839