6
I) Models Built Prior to 1985
On models built prior to 1985 the motor is mounted with an angle bracket. Remove the three
bolts that fasten the motor to the angle bracket. Loosen the Allen set screws located on the
pedestal between the motor and the red wheel. Cut the wires about three inches from the
motor. The motor should slide straight up. Slide the new motor on the pedestal. Fasten the
motor to the angle bracket using the same three bolts. Tighten the Allen set screws. Strip about
one half inch of insulation from the blue and yellow wires that are still connected to the control
box. Connect these wires to the same colored wires on the motor using the wire nuts provided.
Turn the table over and remount the microswitch. Refer to part 1A to prepare the work sample
for use.
II) Models built between 1985 and 1987
Models built in this period use a wooden box for the motor mount. Take the top off the box
by removing the four screws. The motor is suspended in the box with two nylon bolts with
rubber ends. Use a 9/16" wrench to loosen the nuts on both bolts. The motor is now held in
place with two Allen set screws located on the pedestal between the motor and the red wheel.
The set screws can only be accessed from the front opening of the motor mount box. Turn the
red wheel until one of the set screws is lined up with the front opening. Loosen the set screw
using a 1/8" Allen wrench. Turn the red wheel until the other set screw can be loosened. Cut
the wires between the motor and control box on the outside of the motor mount box. Slide
motor out of the pedestal and out of the motor mount box. Strip about 1/2 inch of insulation
from the yellow, blue, and green wires from the control box. Install the new motor by first
sliding the three wires connected to it through the motor mount box. Connect the three wires
from the new motor to the appropriate colored wires on the control box, using the wire nuts
provided. Slide the new motor on the pedestal and tighten both Allen set screws. Tighten both
motor suspension bolts until the rubber ends are very snug against the motor housing. Check
for play in the motor by rocking the red wheel back and forth. If the motor also rocks, the
nylon bolts need to be tightened. After the motor is secure in the box, remount the top of the
motor mount box. Turn the table over and remount the microswitch. Refer to part 1A to
prepare the work sample for use.
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