Grizzly G0484 User Manual

G0484 Gear Head Mill/Drill

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Table Travel

(X-Axis and Y-Axis)

Longitudinal Feed
The longitudinal feed, or X-axis, is moved by
the handwheel

at the right end of the table. The

handwheel will move the table in both direc-
tions side-to-side. One complete revolution of the
handwheel moves the longitudinal feed 0.100".
There is also a scale on the front of the table for
use when a tight tolerance is not required.

Cross Feed
The cross feed, or Y-axis,

is moved with the

handwheel on the front of the table base. One
complete revolution of the handwheel moves the
cross slide 0.100".

Headstock Travel

(Z-Axis)

The  vertical  headstock  travel,  or  Z-axis  travel,  is
controlled  by  the  lift  motor  or  the  manual  head-
stock crank on the right side of the column. This
coarse  travel  is  only  used  to  position  the  head-
stock  in  the  spindle-travel  range.  Precise  incre-
mental  movement  is  available  by  using  the  feed
levers or the fine feed handwheel.

Spindle Height

Control

Spindle height is changed by unlocking the quill
lock lever and the fine feed knob, and using the
quill feed handles or the fine feed knob (

Figure

12). The spindle scale indicates the spindle height
in inches and millimeters.

To change the spindle position:

1. Unlock the quill lock lever and loosen the fine

feed lock knob.

2. Pull down on the quill feed levers to lower

or raise the spindle. Lock the quill lock to
hold the spindle in a particular position if you
choose.

3. Tighten the fine feed lock knob and use the

fine feed knob if you like.

Tip: Milling with the quill fully extended,

can cause tool chatter. For maximum spindle
rigidity when milling, keep the spindle retract-
ed into the headstock as far as possible,
lock the headstock and quill lock levers, and
tighten the fine feed lock knob.

Figure 12. Spindle controls.

Quill Feed Lever

Quill Lock Lever

Fine Feed Knob

Spindle Scale

Fine Feed Lock Knob