Grizzly Vertical Milling Machines G0728 - Manual (Page 25)

Model G0728–31 (Mfg. Since 11/11)
-23-
Longitudinal power feed System
the g0729 and g0731 vertical mills are equipped
with a longitudinal power feed and limit switch for
controlled X-axis table movement. refer to
figure
23 and the descriptions below to understand the
functions of these devices.
A
B
C
D
E
F
H
I
G
figure 23. longitudinal power feed system.
A. Limit Switch: stops powered table move-
ment when either limit stop presses a plunger
on the switch.
b. Limit Stop: activates the limit switch. secure
these devices along the table to limit longitu-
dinal movement.
C. Rapid Movement button: When pressed,
moves the table at the maximum speed in the
direction selected.
d. direction Lever: starts, reverses, and stops
longitudinal table movement.
E. Speed dial: Controls the speed that the table
moves—turn the dial clockwise to increase
the speed.
f. ON/Off Switch: the master power switch
for the power feed.
G. power Lamp: lights when the power feed is
turned ON.
H. Handwheel: Manually positions the table.
I. Graduated dial: Marked in 0.001" incre-
ments, each complete revolution is equal to
0.200" of longitudinal table travel.
Tools Needed Qty
Wrench or socket 12mm ................................... 1
To operate the longitudinal power feed:
1. loosen the table locks (see figure 24).
figure 24. Example of table locks, limit switch,
and limit stop.
limit stop limit switch
table locks
2. position the limit stops along the table to
confine the longitudinal distance you want
the table to travel, then tighten the hex bolts
to secure them in place.
3. Move the power feed direction lever to the
center or neutral position, then plug the
power feed power cord into an appropriate
receptacle.
be sure there is enough running clearance
between the table, spindle, vise/clamps,
or jigs before turning the power feed ON.
failure to do so could result in injury from
tool breaking and pieces being thrown at
high speed.