Maintenance
BETTCHER
Industries, Inc.
Manual No. 185321
June 15, 2018
Maintenance
Operation and Maintenance Manual
5-15
Replacement of the Grinder Motor
(See Autoarm Assembly)
Removal: Turn Power Switch OFF and
unplug the line cord from the outlet.
Clean the grinding dust from the entire
machine.
Remove the two screws holding the
motor cover and slide the motor cover off
the motor.
Disconnect the two wires from the motor
terminals.
Remove the autoarm leaving the cables
attached.
When the autoarm is loose, stand it in the
drawer. Loosen the set screw and remove
the grinding wheel.
While holding the grinder motor, remove
the four screws holding it to the platform.
Set the motor and screws aside and brush
the grinding dust from the platform.
Installation: Position the replacement grinder motor so the (+) terminal is facing toward the pivot
end of the autoarm.
Install all four screws loosely before tightening them down. Be careful not to over tighten them.
Install the grinder wheel on the motor shaft (refer to “Grinder Wheel Cleaning, Wear, and
Installation”)
Connect the red wire to the (+) terminal and the black wire to the other terminal.
Make sure both connectors are pushed on fully and the terminals are pointing straight up.
Slide the motor cover over the motor. Fasten it to the platform with the two screws and lock
washers.
Install the autoarm.
Motor
Cover
+ Terminal of Motor is
Located on This Side
Motor
Screws (4)
Platform
COMPANY
CONFIDENTIAL