Southbend SB1013 Benutzerhandbuch

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For Machines Mfg. Since 7/09
EVS Toolroom Lathes
O P E R A T I O N
4-Jaw Chuck
Refer to Chuck & Faceplate Mounting 
instructions on Page 27 to mount the 4-jaw 
chuck to the spindle.
The 4-jaw chuck features independently 
adjustable hardened steel jaws to hold non-
cylindrical or off-center workpieces. Each jaw can 
be removed from the chuck body and reversed for 
a wide range of work holding versatility.
Mounting Workpiece
Items Needed 
Qty
Chuck Key ............................................................. 1
Chuck Cradle or Plywood 
3
4
" (to protect bed) ...... 1
To mount a workpiece on the 4-jaw chuck:
1.
  DISCONNECT LATHE FROM POWER!
2.
  Place a chuck cradle or plywood on the 
bedway below the chuck to protect it.
3.
  Use the chuck key to open each jaw so the 
workpiece will lay flat against the chuck face 
or jaw steps.
4.
  With help from another person or a 
supporting device, mount the workpiece 
centered on the chuck, then turn each jaw 
until it makes contact with the workpiece.
6.
  After the workpiece is held in place by 
the jaws, turn the chuck by hand and pay 
attention to the workpiece alignment.
— If the workpiece is not correctly aligned 
for your operation as you turn the chuck, 
make fine adjustments by slightly 
loosening one jaw and tightening the 
opposing jaw until the workpiece is 
correctly aligned (see Figure 54 for an 
example).
Figure 54. Example of non-concentric workpiece 
correctly mounted on the 4-jaw chuck.
Figure 53. 4-jaw tightening sequence.
1
2
3
4
Workpiece
Center Point
5.
  Tighten each jaw in small increments. After 
you have adjusted the first jaw, continue 
tightening in an opposing sequence, as 
shown in Figure 53.
Figure 55. Tailstock and quill lock handles in locked 
position.
Tailstock Lock
Lever
Quill 
Handwheel
Quill Lock 
Lever 
Tailstock
The tailstock (Figure 55) on your lathe can be 
used to support workpieces with the use of a live 
or dead center (refer to Centers on Page 37). 
It can also be used to drill or bore holes in the 
center of a part or cut shallow tapers by using 
the offset adjustment.