Remove Cover Plate; Remove Bolts Securing Bearing; Remove Bolt And Washer From Shaft; Loosen Set Screws - Trane CSAA Installation, Operation And Maintenance Manual

Routine Maintenance
3. Remove cover plate from bearing housing if present.
Figure 183. Remove cover plate
4. Remove the bolt and washer from the end of the shaft.
Figure 184. Remove bolt and washer from shaft
5. Loosen the set screws in the bearing inner race.
Figure 185. Loosen set screws
152
6. Remove the bolts securing the bearing to the cassette.
Figure 186. Remove bolts securing bearing
7. Remove the bearing. Use a bearing puller if necessary.
8. Clean shaft and install new bearing on shaft, insuring
that set screws line up with flats on the shaft.
9. Install bearing mounting bolts. It may be necessary to
move wheel up or down to align bolts. The easiest
method is to apply pressure at the top of the wheel.
Using a 1-foot by 1-foot square of ½-inch thick plywood
on the face will spread the force enough to prevent
damage to the media face while pushing on the top of
the wheel. The other method of lifting the wheel is to
use a pry bar at the bottom, taking care to only apply
force at a spoke to prevent bending the band.
Figure 187. Install bearing mounting bolts
10. Tighten the bearing mounting bolts.
11. Check alignment of the set screws and tighten to the
specifications provided in the literature with the
bearing.
12. Rotate the wheel and make sure that it is aligned in the
cassette so that the face is equidistant from each post.
If not, loosen the bearing mounting bolts and adjust as
necessary. Flange bearing units have jack bolts. See
Figure 188.
CLCH-SVX07K-EN