Southbend 18' & 60: EVS Toolroom Lathes 220v sb1016 - Manual (Page 39)

For Machines Mfg. Since 7/09 Model SB1016/SB1036
-37-
O P E R A T I O N
6. Tighten camlocks in a star pattern to draw
the chuck up evenly on all sides while
reducing chance of misalignment, and make
sure to tighten camlocks in an incremental
manner to ensure that no camlock gets fully
tightened all at once (i.e., snug the camlocks
on the first pass, then moderately tighten on
the next pass, then fully tighten on the third
pass).
As you tighten the camlocks, the chuck or
faceplate will snug up onto the spindle nose.
When fully tightened, the cam line will fall
between the two "V" marks on the spindle
nose, as shown in Figure 50.
Figure 50. Camlock fully tightened with the line
between the "V" marks.
Cam Line
Between
"V" Marks
Note: If any of the cam lines do not fall between
the "V" marks when the camlock is tight,
you must adjust the offending camlock stud
as discussed in Installing and Adjusting
Camlock Studs on Page on this page.
To make sure that the chuck centerline is
aligned with the spindle centerline, clamp a
test rod in the chuck and use a test indicator
mounted on the bedways to check for
workpiece runout.
Installing and Adjusting Camlock
Studs
Figure 51. Identifying chuck camlock studs and
locking cap screws.
Locking
Cap
Screw
Cam-Lock
Stud
When fitting a chuck or faceplate with camlock
studs, or when mounting a new chuck or
faceplate, it may be necessary to install or adjust
the camlock studs.
Tool Needed Qty
Hex Wrench 6mm ................................................. 1
To install or adjust camlock studs onto a
chuck or faceplate:
1. Lay the chuck or faceplate upside down on a
protective, flat surface.
2. If installed, remove the locking cap screw
adjacent to each of the six cam-lock
mounting holes (see Figure 51).
3. Thread each cam-lock stud into the chuck
or faceplate until the depth mark shown in
Figure 52 is even with the surface of the
chuck or faceplate and the curved indent
on the side of the stud faces the locking cap
screw hole, as shown in Figure 53. This is
an initial adjustment.