OMM-11-0211-page 13
23. Adjust the blower shaft location in the bearings to the dimensions you recorded in
Step 16
on page 12.
24. Tighten the hardware that holds the bearings on the bearing base.
25.
Using a soft faced mallet, GENTLY
tap on the blower shaft, in between the two bearings, while turning the blower
shaft by hand.
This will "seat" the bearing races. The shaft MUST turn freely.
26. Tighten the set screws in both bearings.
NOTE:
If there are 2 set screws per bearing, make sure you tighten the set
screws in line with each other on each bearing and then the other set screws.
Use new set screws only. See
Section D
on page 5.
27. Turn the shaft by hand again to make sure it turns freely and does not bind.
28. Reconnect the bearing lube lines.
29. Slide the blower sheave onto the blower shaft.
Install a new shaft key.
30. Align the blower and motor sheaves and adjust the belt tension per the instructions in
Section G
on pages 5 & 6
31. While rotating the blower shaft by hand, lubricate the new bearings with fresh grease per the instructions in
Section
B-2
on page 11.
32. Install
new
set screws into the wheel hub, or new bolts into the taper-lock hub.
DO NOT use old set screws or
bolts.
33. Install the blower wheel onto the shaft making sure it is located on the shaft per the dimension you took in
Step 4
on
page 12.
34. Install a
new
shaft key into the wheel hub.
35. Turn the wheel by hand to determine there is no binding or rubbing anywhere.
36. Tighten the wheel set screw,
over the key first,
to the torque values in
Table 2
on page 5. Now, tighten the set
screw onto the shaft to the same torque value. If the wheel has a taper-lock hub, tighten the bolts per
Table 3
on
page 5.
37. Install the blower housing (if used).
38. Install the inlet bell with the clearance and dimensions per
Table 1
on page 4.
39. Turn the wheel by hand to determine there is no binding or rubbing anywhere.
40. Unlock power to the motor, turn it on and let it run for 10 minutes.
41.
Turn off and lock out power to the motor.
42. Check all set screws, nuts and bolts to make sure they are tight.
43. Install belt guard and close the shaft/bearing access hole covers. Install any other guards.
44 Unlock power to the motor, turn it on.
45
Repeat Steps 1, 7, 42, 43 and 44 (in that order) after 8 hours and again after 1 week.
F. Safety Equipment & Accessories:
It is the user’s responsibility to make sure that all safety guards required by company, local, state and OSHA regula-
tions are properly attached and fully functional at all times. If any guards become defective or non-functional at any
time,
the power to the blower MUST be turned off and locked out
until complete repairs and/or replacements
have been made, installed and inspected by authorized personnel. Any accessories used in conjunction with the
blower should also be inspected to make sure they are functioning within their intended limits and design specifica-
tions. The manufacturer’s maintenance manuals should be referred to for correct maintenance procedures. These
accessories include, but are not limited to, the following:
Shaft seals, inspection doors, vibration isolators or vibration bases, air flow or pressure measuring equipment,
hoods, controls, special coatings, silencers, expansion joints, valves, flexible connectors, filters, sheaves and
belts.
VI. ORDERING REPLACEMENT PARTS:
Under normal conditions, you should not need any spare or replacement parts for at least 24 months after shipment
from Cincinnati Fan. That does not include any wear due to abrasion, corrosion, excessive temperatures, abuse,
misuse, accident or any severe conditions the fan was not designed for.
A. If this fan is vital to any process that could cost you lost revenue, we strongly recommend that you keep a
blower wheel, blower shaft and bearings, motor, sheaves and belt(s) at your location.
B. If this fan is vital for the safety of any people and/or animals, we strongly recommend that you keep a com-
plete blower/motor assembly, as originally ordered, at your location.
To order any parts or complete units, contact us for the name of our sales office for your area. Or you can find them
on our website at:
www.cincinnatifan.com
WE MUST HAVE THE BLOWER SERIAL NUMBER FROM THE BLOWER NAME PLATE TO IDENTIFY PARTS CORRECTLY.
