7
2. Make sure the fan is tightly secured to the bearing housing shaft and that
it rotates freely. Make sure the bearing housing is secured to its support.
3. Attach motor to motor base with four bolts, flat washers, lock washers
and nuts provided, see Figure 3. You may want to loosen the adjusting
bolts and raise the motor base so you can reach under the motor base
to tighten the motor hold-down bolts.
4. Apply a rust preventive coating to the motor shaft to prevent shaft corro-
sion and to ease sheave installation and removal.
5. Install motor sheave and align it with fan sheave. Motor support brackets
are slotted to assist in alignment. See Figure 3. A plumb line will be helpful
in aligning sheaves. See Figure 4.
6. Remove the fan guard and fan cylinder splice plate (steel tower only) at
the top of the fan cylinder. Install the belt over the fan by passing the belt
over the fan and rotating the fan blades past the belt. Install the belt onto
the sheaves.
Figure 4
installation
PLUMB LINE
SHEAVES MUST BE PARALLEL TO
EACH OTHER AND IN THE SAME
PLANE OF OPERATION
FAN SHEAVE
MOTOR SHEAVE
➠
