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5.
Loosen and remove the bolts fastening the bearing to the
bearing support and slide bearings off the shaft.
NOTE:
It may be necessary to file the burr left by the bearings set screws
on the shaft, in order to remove the inner bearing.
6.
To install new bearings; slide the bearings and locking
collars onto the shaft with the locking collars facing each
other. Bolt bearings onto the bearing support. Position
shaft using the measurement taken in paragraph 3 of E.8
Fan Shaft Bearings: Removal & Installation, page 10.
7.
Assemble locking collars to the bearing, turning them
in the direction of shaft rotation and use a drift punch to
tighten the collar in place. Then tighten the set screws in
the locking collars.
8.
Reassemble the unit, ensuring the sheaves are
aligned and the v-belt is tensioned as described in the
appropriate sections.
E.9 Fan: Removal & Installation
1.
Remove the fan guard assembly as described in the E.3
FR/HP 36 Fan Guard, page 10.
2.
Remove the drive frame as described in E.7 Drive Frame:
Removal, page 10.
3.
Remove the set screws on the fan hub and remove the fan
from the shaft.
NOTE:
If the shaft is corroded it may be necessary to replace the shaft.
4.
To reassemble, slide the shaft into the fan hub until the
end of the hub. Ensure that the two flats on the shaft align
with the set screws in the fan hub. Then tighten the fan's
set screws.
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