Mittler Bros Machine & Tool 400-202 User Manual
Page 2

6. Drill and tap two (2) holes, 5/16”-18, in the motor mounting plate as shown below. The holes
should be drilled 1” deep and then counter sunk a small amount to allow for the bolt heads.
Spindle
Side
Motor Side
Drill & Tap 1” deep
for 5/16”-18
7. Slide the large bore (1”) Love Joy coupler half onto the spindle. Be sure the “fingers” are pointing
toward the motor location and that the key is installed in the key way. Do not tighten down set
screw at this time.
Spider
Spindle Side
Large Bore
Gearbox Side
Small Bore
Side
Small
3/4” Bore
Large
1” Bore
Fingers
8. Assemble the motor to the gear box. Use supplied anti-seize from the gear box container and
lube the inside of the gearbox shaft where the motor slips in. Be sure the motor to gearbox
mounting flange on the gearbox has no bolts in it. Be sure the supplied key is in the motor shaft
and slide the motor and gearbox together. Make sure the motor is rotated so that the wire
connection box is on the side as shown. Install the four (4) bolts and lock washers by hand and
then tighten once you are sure that everything is lined up.
Gear
Box
Lube
Inside
Wire
Connection
Box
9. Slide the small bore (3/4”) Love Joy coupler half onto the gearbox shaft. Be sure the “fingers” are
pointing away from the gearbox and that the key is installed in the key way. Do not tighten down
set screw at this time. Slip the “spider” into the fingers of the coupler.