Grizzly G0791 Owner's Manual page 9

Milling Headstock
AB
AK
AJ
AI
Figure 5. Milling headstock controls.
AB. Mill Spindle Speed Shift Levers: Select
between 250, 530, 1100, and 2300 RPM.
AC. Vertical Travel Handwheel: Raises and low-
ers headstock for Z-axis control over spindle
positioning during setups.
AD. Z-Axis Lock Bolt: Locks vertical position of
mill headstock when tightened.
Model G0791 (Mfd. Since 9/15)
AC
AD
AE
AF
AG
AH
AE. Depth Scale Lock Knob: Locks the depth
scale in position.
AF. Coarse Downfeed Handwheel: Moves spin-
dle down quickly when rotated and automatic
spring return brings spindle back up to top
when you release downward pressure on
handles. Typically used for drilling holes or
checking spindle positioning during setups.
AG. Downfeed Selector Knob: Push in to
engage fine downfeed; pull out to engage
coarse downfeed.
AH. Depth Pointer and Scale: Indicates vertical
position of the quill.
AI. Fine Downfeed Handwheel: Provides fine
control over vertical spindle travel to provide
Z-axis control when milling.
AJ. Mill Spindle Speed Chart: Indicates shift
lever positions for various spindle speeds.
AK. Quill Lock Bolt: Locks vertical position of
quill (or Z-axis) when tightened. Typically
used in conjunction with spindle downfeed
controls when milling.
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