Grizzly G0827 Owner's Manual page 39

Horizontal/vertical mill w/dro
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Setting Vertical Spindle Speed
Use the charts below (see Figure 45) or those on
the headstock when setting the spindle speed.
With the spindle completely stopped, position the
high/low range selector (see Figure 46) and spin-
dle speed selectors (see Figure 47) as indicated
by the spindle speed chart to set the desired
spindle RPM. Position I on the range selector is
low speed range; position II is high speed range.
Note: If necessary, rotate the spindle a little by
hand to mesh the gears when changing speeds.
Low Range (I)
Spindle
Speed
High Range (II)
Selectors
Figure 45. Vertical spindle speed charts.
High/Low
Range
Selector
Figure 46. Location of high/low range selector.
Spindle Speed Selectors
Figure 47. Location of spindle speed selectors.
Model G0827 (Mfd. Since 11/17)
High/Low
Range
Selector
Low Range
High
(I)
Range
(II)
Setting Horizontal Spindle Speed
Use the chart below (see Figure 48) or the one
on the rear column cover when setting the spindle
speed. With the spindle completely stopped, posi-
tion the range knob and spindle speed knobs (see
Figure 49), as indicated by the spindle speed
chart, to set the desired spindle RPM.
Note: If necessary, rotate the spindle a little by
hand to mesh the gears when changing speeds.
Range
Spindle Speed Knobs
Knob
A
C
I
48
132 324
II
72
180
III
96
240
Figure 48. Horizontal spindle speed chart.
Spindle Speed Knobs
Range Knob
Figure 49. Location of horizontal spindle speed
and range knobs.
B
D
C
D
816
456
1140
612
1560
-37-

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