Pioneer PB Series, Operation & Maintenance Manual

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17
SHAFT AND BEARING
With the mechanical seal removed, remove the bearing
housing drain plug located on the front bottom left of the
bearing frame (figure 4), and drain oil. Clean plug and
reinstall in housing. Remove fasteners, and slide the
bearing cap/SAE bracket and grease seal off the shaft.
Press the grease seal from the bearing cap/SAE bracket.
Place a block of wood against the impeller end of the shaft
and gently tap the shaft and bearings out of the housing.
BEARING REMOVAL
Remove the shaft snap ring. This will require the use of snap ring pliers. It
will be necessary to use a puller or hydraulic press to remove the drive-end bearings and
pump-end bearing from the shaft. If the bearings are to be reused, be certain that puller
jaws bear only against the inside races (shaft-side) of the bearings.
REASSEMBLY OF COMPONENTS
SHAFT AND BEARINGS
Clean the housing and components with appropriate cleaning solvent and use compressed air to
dry components. If bearings need replacement, remove the outboard (drive-end) bearing
retaining ring and use appropriate bearing puller to remove bearings from shaft. Inspect shaft
and replace if distorted, nicked or scratched beyond repair.