80
4.
While supporting weight of drive motor
in one hand, loosen and remove (4)
mounting bolts.
5.
Install replacement motor with hardware
kit supplied.
6.
Install pulley to dimension as shown and
secure set screw to drive shaft.
7.
Stretch belt over pulley and engage in
groove.
8.
Follow start-up procedure.
Polymer Wheel Belt Replacement
1.
Obtain access to the pulley side bearing
access plate if bearing access plates are
provided. Remove two bearing access
plate retaining screws and the access
plate.
2.
Using hexagonal wrench, loosen set
screw in bearing locking collar. Using
light hammer and drift (in drift pin hole)
tap collar in the direction of wheel
rotation to unlock collar. Remove collar.
3.
Using socket wrench with extension,
remove two nuts which secure bearing
housing to the bearing support beam.
Slide bearing from shaft. If not removable
by hand, use bearing puller.
4.
Form a small loop of belt and pass it
through the hole in the bearing support
beam. Grasp the belt at the wheel hub and
pull the entire belt down.
Note:
Slight hand pressure against wheel rim
will lift weight of wheel from inner race of
bearing to assist bearing removal and
installation.
5.
Loop the trailing end of the belt over the
shaft (belt is partially through the
opening).
6.
Reinstall the bearing onto the wheel shaft,
being careful to engage the two locating
pins into the holes in the bearing support
beam. Secure the bearing with two self-
locking nuts.
7.
Install the belts around the wheel and
pulley according to the instructions
provided with the belt.
8.
Reinstall diameter seals or hub seal and
tighten retaining screws. Rotate wheel in
clockwise direction to determine that
wheel rotates freely with slight drag on
seals.
9.
Reinstall bearing locking collar. Rotate
collar by hand in the direction the wheel
rotates (see label provided on each
cassette for wheel rotation).
10.
Lock in position by tapping drift pin hole
with hammer and drift. Secure in position
by tightening set screw.
11.
Reinstall Bearing Access Cover.
12.
Apply power to wheel and ensure that the
wheel rotates freely without interference.
Belt Replacement
Protect hands and belt from possible
sharp edges of hole in Bearing
Support Beam.
CAUTION
Summary of Contents for RZ Series
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Page 31: ...31 Figure 4 4 Point Lift RZ Series Air Cooled Condenser Unit ...
Page 90: ...90 Gas Heater Operating Instructions ...
Page 108: ...108 Maintenance Log E Coated Coil ...
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