Spider; Manual Feed - Grizzly G0791 Owner's Manual

Spider

This lathe is equipped with a set of outboard
spindle supports otherwise known as a "spider"
(see Figure 63).
Jam
Nut
Figure 63. Spider components.
Remove spider screws when not in use.
Always DISCONNECT LATHE FROM POWER
when installing, removing, or adjusting spi-
der screws. Ignoring this warning can lead
to personal injury or machine damage.
The spider is especially designed for supporting
gun barrels during chambering operations; how-
ever, it is a great support option for almost any
long workpiece that extends through the outboard
side of the spindle.
The tips of the spider screws have brass wear
pads that hold the workpiece without causing
indents in the finish.
When spider screws are installed, always use the
jam nuts to lock each spider screws in position.
Merely tightening the spider screws against the
workpiece and leaving the jam nuts loose is not
safe. Spiders screws that loosen during operation
can crash into the end gear cover.
-50-
Spider
Screw

Manual Feed

The handwheels shown in Figure 64 allow the
operator to manually move the cutting tool.
Cross Slide
Handwheel
Carriage
Handwheel
Figure 64. Locations of carriage, cross slide,
and compound rest handwheels.
Carriage Handwheel
Graduated Dial
Increments ................................... 0.01" (0.25mm)
One Full Revolution ................... 0.66" (16.76mm)
Use the carriage handwheel to move the carriage
left or right along the bed.
Cross Slide Handwheel
Graduated Dial
Increments .................................0.002" (0.05mm)
One Full Revolution ................... 0.100" (2.54mm)
Adjust the position of the graduated scale by hold-
ing the handwheel with one hand and turning the
dial with the other. The cross slide handwheel
has a direct-read graduated dial, which shows the
total amount of material removed from the diam-
eter of the workpiece.
Compound Rest Handwheel
Graduated Dial
Increments ................................ 0.001" (0.03mm)
One Full Revolution ................... 0.100" (2.54mm)
Use this handwheel to move the cutting tool lin-
early along the set angle of the compound rest.
The compound rest has an indirect-read gradu-
ated dial, which shows the actual distance the
tool moves.
Model G0791 (Mfd. Since 9/15)
Compound Rest
Handwheel