Grizzly VS MILLING MACHINE G0669X - Manual (Page 34)

-32-
g0669X precision 10" x 54" Vs Milling Machine
I. fine Downfeed Handwheel: Moves the quill
approximately 1 ⁄
30
of the distance that the
coarse downfeed handles moves it.
J. Auto-Downfeed Direction Pin: starts (in or
out), stops (middle), or reverses direction of
the quill when in auto-downfeed mode.
Quill Auto-Downfeed
1. turn the spindle motor OFF, and wait for the
spindle to stop.
2. rotate the quill auto-downfeed selector clock-
wise to the engage (rear) position.
3. adjust the auto-downfeed stop to the desired
depth, then lock it in place.
Note: The increments marked on the auto-
downfeed stop represent 0.001" of quill move-
ment, with one full revolution equal to 0.010"
of quill movement.
4. Move the auto-downfeed direction pin to the
center (neutral) position.
Note: The auto-downfeed direction pin has
three positions—in, center, and out. Moving
the pin to the in or out positions will start or
reverse quill movement. Move it to the center
position to stop the quill movement.
5. position the auto-downfeed clutch lever to
the right so that the gearing is disengaged.
6. turn the spindle motor ON and start spindle
rotation.
7. Move the auto-downfeed rate selector to the
setting that is correct for your operation.
fine & Auto-Downfeed Components
there are a number of devices that are used for
fine downfeed and quill auto-downfeed control.
Use
figure 40 and the descriptions below to
understand the functions of these devices.
A. Auto-Downfeed Rate Selector: selects one
of three auto-downfeed rates.
b. Quill Auto-Downfeed Selector: Changes
downfeed control between manual downfeed
or auto-downfeed.
C. Quill Dog: disengages the auto-downfeed
clutch lever as it moves with the quill to stop
or reverse quill movement.
D. Auto-Downfeed Stop: sets the maximum
depth of the quill.
E. Auto-Downfeed Stop Lock: Locks the auto-
downfeed stop in position.
f. Quill Lock: Locks the quill in position.
G. Auto-Downfeed Scale: shows the posi-
tion of the auto-downfeed stop (marked in
inches).
H. Auto-Downfeed Clutch Lever: engages the
auto-downfeed gearing to move the quill.
figure 40. Fine downfeed and quill auto-
downfeed system components.
a
C
d
e
F
g
h
i
J
B