Southbend SB1059F User Manual

Page of 140
-48-
For Machines Mfg. Since 3/11
EVS Toolroom Lathe w/DRO
O P E R A T I O N
3.
  Use the tailstock handwheel to feed the quill 
out from the casting approximately 1".
Note: 
Do not extend the quill more than 2" or 
stability and accuracy will be reduced.
4.
  Insert the center into the tailstock quill.
5.
  Seat the center firmly into the quill during 
workpiece installation by rotating the quill 
handwheel clockwise to apply pressure, with 
the center engaged in the center hole in the 
workpiece.
Note: 
Only apply enough pressure with 
the tailstock quill to securely mount 
the workpiece between centers. Avoid 
overtightening the center against the 
workpiece, or it may become difficult to 
remove later, and it will result in excessive 
friction and heat, which may damage the 
workpiece and center.
Removing Center from Tailstock
To remove the center from the quill, hold onto it 
with a gloved hand or shop rag, then rotate the 
tailstock handwheel counterclockwise to draw 
the quill back into the casting until the center 
releases.
If the center does not come loose by retracting 
the quill, extend the quill to expose the slot 
shown in Figure 52, then use a drift key to 
remove the center.
Figure 52. Drift key slot in the side of the quill.
Drift Key Slot
Mounting Workpiece Between 
Centers
1.
  DISCONNECT LATHE FROM POWER!
2.
  Drill center holes in both ends of the 
workpiece.
3.
  Install a dead center in the spindle with 
a lathe dog and a chuck or faceplate, then 
install a live center or carbide-tipped dead 
center in the tailstock.
4.
  Lubricate the workpiece center holes, then 
mount the workpiece between the centers 
and hold it in place with light pressure from 
the tailstock center.
5.
  Seat the center firmly into the quill by 
rotating the tailstock handwheel clockwise 
to apply pressure against the workpiece (see 
the example in Figure 53).
 
Only apply enough pressure to securely 
mount the workpiece between centers. 
Avoid over-tightening the center against 
the workpiece, or it may become difficult 
to remove later. Also, over-tightening will 
result in excessive friction and heat, which 
may damage the workpiece or center.
Figure 53. Example photo of a workpiece mounted 
between the centers.