Grizzly Vertical Milling Machines G0728 - Manual (Page 30)

-28-
Models G0728–31 (Mfg. Since 11/11)
downfeed Controls
refer to figures 34–35 and the following descrip-
tions to understand the functions of the downfeed
controls that affect the travel of the quill, spindle,
and cutter.
A. Quill dog: Moves with the quill. use the
pointer on the side with the downfeed scale
to determine the depth of downfeed.
b. downfeed Scale: Displays in inches the
amount of quill travel.
C. Coarse downfeed Handle: When this han-
dle is enabled with the downfeed selector, it
raises/lowers the quill quickly.
d. Quill Lock: locks the quill in place but does
not affect spindle rotation.
E. downfeed Stop & Lock: stops downfeed
travel when the quill dog reaches this point.
set the stop at any position along the
downfeed scale, then secure it in place by
tightening the lock up to it.
f. Graduated Scale: Displays quill travel in
0.001" increments when the fine downfeed
handwheel is used. one full revolution repre-
sents 0.080" of quill travel.
G. fine downfeed Handwheel: When this
handwheel is enabled with the downfeed
selector, it raises/lowers the quill in small
increments.
H. downfeed Selector: Enables either the
coarse or fine downfeed control. tighten
the selector to enable the fine downfeed
handwheel, and loosen it to enable the
coarse downfeed handle.
figure 34. Downfeed controls viewed from the
right side.
a
B
C
D
E
figure 35. Downfeed controls viewed from the
left side.
F
g
h