Grizzly G4003G Owner's Manual page 56

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The following examples explain how to use
1–8
the thread dial and the thread dial chart.
Even TPI: For threading an even number TPI,
use any numbered line on the thread dial (see the
example in Figure 75).
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1–8
&
1-2-3-4
Figure 75. Any numbered line on dial for
threading even TPI.
Note: For TPI divisible by 4, this rule still applies.
The Indicator Table on the lathe shows that lines
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1–8 may be used, which means that lines 1–4 and
any of the half marks may be used.
1
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1, 3
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ANY
-54-
1
1
1
1
1
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1
Odd TPI: For threading an odd number TPI, use
the 1 or 3 line on the thread dial (see the example
in Figure 76).
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ALL
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1, 3
Figure 76. 1 or 3 line on dial for threading odd
TPI.
IMPORTANT: Once the 1 or 3 has been selected,
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continue using that same numbered line.
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N
Fractional TPI: For threading a fractional TPI
ANY
with a half number (4.5, 5.5, 6.5, 9.5), only use
the 1 line on the thread dial (see the example in
Figure 77).
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1
Figure 77. 1 line on dial for threading fractional
TPI.
IMPORTANT: For cutting 4.75 TPI, proceed as
though cutting a metric thread and do not disen-
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gage the half nut until the threading operation is
1, 3
complete. Stop the spindle at the end of each cut,
retract the cutting tool, and return the cutting tool
to the start of the thread.
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ANY
Model G4003G (Mfd. Since 1/15)
1
1
1
1
1
1
1
1