Trane Climate Changer TCFS Nstallation, Operation, And Maintenance page 73

6. Remove the bolts securing the bearing to the cassette.
Figure 84. 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 85. 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 86.
CLCH-SVX010A-EN
Figure 86. Typical flange bearing, shaft and hub
assembly
Set screw requires
Loctite
13. Pillow block bearing units require shims to adjust the
bearing up or down. See
mounting bolts once alignment is correct.
14. Install bearing cover plates. Remove blocks supporting
wheel. Install belts.
Figure 87. Typical pillow block bearing, shaft and hub
assembly
Set screw requies
Loctite
CDQ Drive Belt Adjustment/Replacement
The CDQ wheel uses a link belt that has no tension devices
that need adjustment. Tension the belt by adjusting the
number to links in the belt. If the belt becomes too loose it
can be tighten by removing a link from the belt.
WARNING
Hazardous Voltage!
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power can not be
inadvertently energized. Failure to disconnect power
before servicing could result in death or serious injury.
Routine Maintenance
Figure 87. Retighten bearing
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