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Grizzly G4003G Owner's Manual: Section 4: Operation; Operation Safety; Spindle Speeds

Gunsmith's lathe.
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Operation Safety

Damage to your eyes, lungs, and ears could
result from using this machine without
proper protective gear. Always wear safety
glasses, a respirator, and hearing protection
when operating this machine.
Loose hair and cloth-
ing could get caught in
machinery and cause seri-
ous personal injury. Keep
loose clothing and long
hair away from moving
If you have never used this type of machine
or equipment before, WE STRONGLY REC-
OMMEND that you read books, trade maga-
zines, or get formal training before begin-
ning any projects. Regardless of the con-
tent in this section, Grizzly Industrial will
not be held liable for accidents caused by
lack of training.
Complete the Test Run & Break-In proce-
dure on Page 16 before using this lathe for
any cutting or threading operations; other-
wise, gear box damage will occur.
G4003G Gunsmith's Lathe

Spindle Speeds

NEVER move levers while the lathe is run-
ning, and NEVER force any lever when
The spindle speed or RPM is controlled by the
speed control levers (Figure 17). Use the chart in
Figure 18, to find the best spindle speed required
for your task.
Figure 17. Spindle control levers.
The chart below shows the various combinations
of knob positions for achieving a desired speed.
To select a spindle speed of 600 RPM, move the
alpha lever until the indicator arrow points to C.
Move the numeric lever so it points to 3.
Figure 18. Speed chart.


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