3
Press
[RESET]
but do not move the spindle or C-
axis gears more than a tooth.
Note:
The
[RESET]
button is used instead of E-
stop so that the C-axis stays oriented.
Mesh the gears by turning the adjuster screw to
the left until the C-axis drive gear is fully engaged
with the disc gear.
Push the mount in by hand and make sure the
gears are fully meshed. The screw will start to
stick out when fully engaged. See Red Arrow.
Slightly snug the mounting bolts
4
With the C-axis gears fully engaged, set the
Spindle Orient Offset:
• Press
[DIAGNOSTIC]
and go to
Parameters Tab, then Factory Tab
• Enter 4.082 and
[F1]
• Press
[S+F3]
Press
[Y]
5
Now that the spindle offset is set, back the C-axis
off using the adjustment screw. Fully disengage
the gears, and move them apart until they can
not touch. Don't move the spindle to check, just
watch the gears.
Engage the C-axis in
[MDI]
using command
M154.
The axis should engage smoothly and push the
mount out.
The force provided by the spring will properly set
the amount of backlash in the gear set.
Torque the mounting bolts to 50 ft lbs.
If the teeth do not mesh, restart the procedure.
C-Axis - Engagement Offset - ST 15-30 - Lathe - NGC
Page 4 of 6 pages
