BETTCHER
Industries, Inc.
Maintenance
5-24
Maintenance
Operation and Maintenance Manual
Manual No. 185321
June 15, 2018
Replacement of the Drive Motor and Drive Assembly (Continued)
(See Main Assembly and Drive Assembly.)
Installation:
Install the drive sprocket onto the new motor with the set screw aligned to the flat of the motor
shaft.
With the flanged end of the drive sprocket about 1/32 inch (.8mm) from the surface of the motor,
tighten the setscrew securely.
Position the drive motor so the wires come out from the top of the motor.
Place the timing belt around the motor drive sprocket and place the motor up to the standoffs,
with the wires at the top.
Install a screw and lock washer in one of the standoffs
closest
to the driven sprocket and leave it
slightly loose.
With the motor loose, swing the motor toward the driven sprocket as needed to provide enough
slack to get the belt around the driven sprocket.
Swing the drive motor back to tighten the belt and to bring into alignment with the other three
standoffs.
Attach the remaining three screws and tighten all four.
Clean the grinding dust from around the base plate lip seal.
Wipe the drive shaft clean.
Apply a light coating of grease to the lip seal and to the shaft.
Install the drive assembly from the inside of the cabinet and through the lip seal. Fasten it with
the four flat head screws.
Connect the plug to (P4) and tighten the end screws.
Install the rear panel.
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