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Maintenance
The MD5016 fan motor is located inside the tower. The motor can be
accessed through the mechanical access panel. See the Access Door
Operation section for instruction on opening the access panel. For greater
access to the motor, the motor mounting system can be swung outside
the tower to facilitate maintenance and removal. Remove the drive belt
by following the instructions in the Belt Tensioning section. Loosen the
motor mount system retaining bolts shown in the image. It is not neces-
sary to loosen any hardware other than what is indicated. Hinge the motor
mounting system 90° out through the access panel.
The MD5016 motor is installed with the shaft down. There is no acceptable
location on the motor to hoist with the motor in this orientation. The motor
should be hoisted by leaving it attached to the motor mount mechanism
and removing the entire mechanism from the torque tube. After swinging
the mount outside of the tower, attach the mount to a hoist with straps or
chains. Lift slightly on the mount with the hoist to remove the weight from
the hinge fasteners, then loosen and remove hinge hardware. Only remove
the hardware shown.
Depending on the motor frame size, the center of gravity of the mo-
tor assembly mount may be off center. Always hoist from the top of
the motor mount
If the motor is removed from the mounting plate, it should be reinstalled
at the torques specied on the following page—do not lubricate the bolts.
Reassemble the mechanical system, following the instructions above in
Caution
MOTOR MOUNT
RETAINING BOLTS
ACCESS PANEL
OPENING
INSIDE VIEW
HINGE
HARDWARE
JACKING SCREW