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Model G8688 (Mfg. 3/09+)
Figure 12. Rear controls.
5
6
5. HIGH/LOW Range Control: Shifts the spin-
dle speed range from HIGH range, 0-2500
RPM to LOW range, 0-1100 RPM.
Note: DO NOT shift from HIGH to LOW while
the lathe is running!
6. LEADSCREW FORWARD/NEUTRAL/
REVERSE Lever: Changes leadscrew
rotating direction for power feed or threading
operations.
Note: DO NOT shift leadscrew direction while
the lathe is running!
Chuck Jaws
The 3-jaw chuck supplied with the lathe comes
with 2 sets of jaws which are depicted in Figure
13. These are commonly known as the internal
and external jaws. The internal jaw can hold a
workpiece on the inside or outside surface of the
jaw (exterior or interior of the part). The exter-
nal jaw holds the part from the inside surface of
the jaw (exterior of the part). Common uses are
shown in Figure 14.
Figure 13. Internal & external jaws.
Internal Jaw
External Jaw
External Jaw
Internal Jaw
with Internal
Grip
Internal Jaw with
External Grip
Figure 14. Workholding options.