Southbend SB Benutzerhandbuch

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For Machines Mfg. Since 5/11
13" Heavy 13
®
 Gearhead Lathe
O P E R A T I O N
Operating the lathe at spindle speeds higher 
than 350 RPM when the high (H) gearbox 
range is selected could result in gearbox 
damage. Always use spindle speeds of 
350 RPM or lower when using the high (H) 
gearbox range.
Setting Spindle Speed
Selecting one of the 8 spindle speeds available is 
a combination of configuring the spindle range 
lever and the spindle speed lever shown in 
Figure 66.
The spindle speed and range levers control the 
gear configuration in the headstock to produce 
the selected spindle speed. Refer to the chart 
below for the available spindle speeds available.
Low Range (RPM)
High Range (RPM)
80
488
127
772
200
1245
320
2000
ALWAYS make sure the spindle is completely 
stopped BEFORE using the headstock control 
levers to make changes. If the spindle is 
rotating when attempting to change the 
spindle speed, the headstock gears will suffer 
damage!
Configuration Examples
Using the controls on the lathe, follow along with 
these two examples for setting the spindle speed 
to gain a better understanding of this task.
Setting Spindle Speed of 200 RPM
1. 
Make sure the spindle is completely stopped 
and the spindle lever is in the OFF (middle) 
position.
2.
  Move the spindle range lever to the right 
so that the arrow on top of its hub points 
toward the (low) label (see the illustrated 
in Figure 67).
Note: 
If necessary, use the chuck key to rock 
the spindle back-and-forth to help mesh the 
gears as you move the levers.
Figure 67. Setting the spindle speed to 200 RPM.
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Spindle Range
Lever Set to LOW
Spindle Speed
Lever Set to 200 RPM
3.
  Move the spindle speed lever so that the 200 
on its hub is also pointing at the L label.
Note: 
You will hear a distinctive click when the 
spindle speed lever is in the correct position.
The lathe is now set for a spindle speed of 200 
RPM.
Figure 66. Spindle speed controls.
Speed
Lever
Spindle Range
Lever