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For Machines Mfg. Since 8/09 Model SB1027
-39-
OPERATION
7. Select one of the three downfeed rates by
pulling the auto-downfeed rate selector
knob out, position the selector over the
appropriate detent, then release the knob.
Make sure the pin is firmly seated by
attempting to move the selector without
pulling the knob out.
Note: Refer to the illustration in Figure 41 when
selecting the downfeed rate.
8. Use the coarse downfeed lever to lower the
spindle slightly until you can pull the clutch
lever out to the left and it locks in place,
which will start the auto-downfeed spindle
travel.
To avoid the risk of gear damage, always
start spindle rotation before using the auto-
downfeed rate selector.
Figure 41. Positions of the auto-downfeed rate
selector.
M
L
H
H = 0.006 in./rev.
L = 0.0015 in./rev.
M = 0.003 in./rev.
(Rates given in inches of travel
per revolution of the spindle)
Spindle Brake
When pressed backward, the spindle brake lever
(see Figure 42) activates a switch that turns the
spindle motor OFF and engages drum-type brake
pads to stop spindle rotation.
Figure 42. Location of the spindle brake lever.
Spindle
Brake Lever