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Southbend SB1025 User Manual

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Page of 100
For Machines Mfg. Since 8/09
SB1024/SB1025/SB1026
-43-
O P E R A T I O N
Figure 37. Model SB1026 V-belt positions and speeds.
Motor
Spindle
SB1026
Low Spindle
Speed Range
80
140
220
325
SB1026
High Spindle
Speed Range
Motor
Spindle
710
1170
1860
2800
5.
  To re-tension the V-belt, push the 
adjustment lever back with moderate force, 
then re-tighten the two lock levers to secure 
the motor in place.
6.
  Replace the two belt housing side covers 
before re-connecting the mill to power.
To avoid entanglement hazards, always make 
sure that the two belt housing safety covers 
are firmly in place before connecting the mill 
to power.
Downfeed Controls
Spindle downfeed movement on the mill 
is controlled by three mechanisms: 1) The 
coarse downfeed handle, 2) the fine downfeed 
handwheel, and 3) the auto-downfeed system.
Using the Coarse Downfeed 
Handle
1.
  Make sure that the spindle rotation is 
turned OFF and the spindle is at a complete 
stop.
2.
  To set the downfeed for manual control, 
pull the downfeed selector knob out, then 
rotate it clockwise until the selector pin 
under the knob seats in the forward manual 
(disengaged) position, as shown in Figure 
38 and illustrated in Figure 39 on the next 
page.
Note:
 It may be necessary to turn the spindle by 
hand as you move the selector to enable the 
gears to mesh.
Figure 38. Downfeed selector in the manual 
(disengaged) position.
Downfeed Selector
3.
  Make sure the selector pin is firmly seated 
in the detent by attempting to move the 
selector without pulling the knob out.