Grizzly G0709 - Manual (Page 44)

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Model G0709 (Mfg. Since 5/11)
changing Spindle Speed
this lathe is equipped with two levers shown in
figure 48 that are used to achieve eight spindle
speeds.
Never move either lever while the
spindle is rotating, or gear clash and tooth
fracture may occur. When the lathe is stopped,
if the levers do not fully engage, the spindle must
be slightly rotated by hand.
figure 48. spindle speed levers.
speed lever
selecting
1200 rpM
range lever
selecting
"h" high
if the spindle speed range lever (see figure 48)
is positioned in low "l", the four spindle speeds
listed in the black indicator are available. if the
range lever is positioned in high "h", the four spin-
dle speeds listed in the red indicator are available.
the spindle speed lever shown in figure 48 has
eight speed selections depending on if the spindle
speed range lever is in high or low.
When in low range, the available spindle speeds
are 70, 115, 190, and 300, and when in high
range, the available speeds are 460, 755, 1255,
and 2000.
To change the spindle speed:
1. determine the spindle speed required for the
lathe operation.
2. Move the spindle speed range lever to the
right for high range or left for low range.
3. Move the spindle speed lever to the left so it
is over the required speed, for example 1200
rpM is being selected in
figure 48.
—When the range lever is in high, the speeds
in the red band are available.
—When the range lever is in low, the speeds
in the black band are available.