Hunter AutoComp Elite, Operation Instruction Manual, Page: 19 / 33

OPERATION INFORMATION 15
inserts are fully contacting the rotor surface and cut a
full circle around the rotor surface. Tighten the
inboard lock. Each hash mark represents .004 in.
(0.1016 mm).
3. Loosen the outboard lock and adjust the outboard
toolholder by turning the depth of adjustment knob.
4. Using the feed control, verify the cutter is all the way
in on the rotor surface.
Figure 30
5. Using the feed control, quickly draw the cutters
across the face all the way out to the edge of the
rotor. This will knock off any rough edge the rotor
may have.
6. Draw the cutters back to the inside position (as seen
in the photo above) and tighten the feed engagement
knob. This will begin cutting the rotor.
7. Adjust final depth of cut. Each mark on the depth of
cut adjustment knob represents 0.004 inch of cut.
8. Adjust RPM as necessary. The ACE has a maximum
RPM of over 120. If the rotor begins to chatter,
change the RPMs until the chatter stops.
Figure 31
ACT (Anti-Chatter Technology) Chatter Con -
trol
Press the ACT button to enable the chatter control. This
process varies the RPMs of the brake lathe to eliminate
rotor resurfacing problems caused by chatter.
Figure 32
Press the ACT button once the feed engagement knob
has been tightened. The ACT button can be depressed
any time after the RPMs have been set.
To disengage ACT, press the ACT button.
Using the Stabilizer Support Rod
Use the stabilizer support rod to prevent lathe from mov -
ing during heavy cuts or high torque load of vehicle drive -
train. Stabilizer support rod may be extended to reach the
rack surface or the floor.
Using the Reverse Function
Reverse rotation is used on some vehicles when excess
drag on the vehicle drivetrain prevents normal lathe oper -
ation.
The twin cutter insert holders must be flipped over when
using the reverse function.
Stop rotation of the lathe by pressing the “STOP” button.
Disconnect the lathe AC power cord from the outlet and
rotate the twin cutter insert holders as described in
Reverse Rotation on page 30.
Reconnect the lathe AC power cord.
Press the reverse switch on the console. Verify that the
direction in the top right corner of the tablet is correct.
Figure 33
Turn rotor(s) as normal.
When reverse turning is complete, stop rotation of the
lathe by pressing the “STOP” button.
Disconnect the lathe AC power cord from the outlet and
rotate the twin cutter insert holders back to normal posi -
tion.
Tighten the twin cutter insert holders as described previ -
ously.
Spindle RPM Adjustment Tips:
Difficult to rotate rotors and/or extremely
deep cuts should be turned at 70-90 RPM to
gain the highest motor torque.
If lathe starts to slow down automatically
during cut the spindle rotation speed may be
too high.
If lathe continues to automatically slow in
RPM below 70 RPM, the lathe can be shut-off
and restarted at slower speed to override
software optimization adjustment.