-22-
M1036 Micro Mill
O
PE
R
ATIO
NS
Changing.RPM
Figure.19.
RPM dial.
The variable speed dial shown in
Figure
19
controls the
spindle speed and the pulleys shown in
Figure.20.
control
the speed range. As a general rule, smaller bits and
softer material require higher speeds and less torque,
and larger bits and harder materials require slower
speeds and greater torque.
To.change.the.RPM,.do.these.steps:
1.
Turn the mill
ON
and rotate the RPM dial (
Figure.
19
) to reach the desired speed.
To.change.speed.range,.do.these.steps:
1.
Remove the pulley cover and loosen the motor
mount nuts shown in
Figure.20
.
2.
Slide the motor pulley toward the spindle pulley and
move the round belt to the other pulley position.
Note:.
The upper pulley position is the low range,
and the lower pulley position is the high range.
Figure.20.
Spindle speed pulleys.
Depth.Stop
Figure.18.
Depth stop.
The depth stop allows the operator to make numerous
holes that all are the same depth or to hold the mill at a
specified depth.
To.set.the.depth.stop,.do.these.steps:
1.
Use the micro downfeed knob to set the desired
depth.
2.
To set the quill to repeat the same depth, rotate the
graduated dial (
Figure.18
) past the O mark until it
stops, then tighten the set screw.
3.
To lock the quill at the specified depth, rotate the
graduated dial past the 30 mark until it stops, then
tighten the set screw.
Motor Mount
Nuts
