Southbend SB1231 - Manual (Page 3)

Camlock Stud Installation
The camlock studs that are shipped with this
chuck may be pre-installed from the factory.
If so skip this section and complete Chuck
Installation and Removal on Page 4;
otherwise, install the camlock studs as outlined
below:
1. Oil and thread each cam stud into the chuck
until the alignment groove is flush with the
chuck surface, as shown in Figure 2.
2. Install and tighten the locking cap screw
for each stud, making sure that the camlock
studs can slightly rotate back and forth.
Figure 2. Camlock stud installation.
Figure 3. Camlock stud adjustment.
Camlock Stud Adjustment
If the camlock studs have been pre-installed at
the factory, or if you are installing them for the
first time, slight machining differences between
the lathe spindle and chuck can cause one or
more camlocks to lock at the incorrect location.
If any cam line stops outside of a “V” mark when
all of the camlocks have been tightened, remove
the chuck and adjust the height of the offending
stud one full turn up or down as illustrated
below. After all camlocks operate correctly,
stamp alignment marks in the chuck and spindle
to ensure that the chuck can be re-installed in
the same position after being removed.
Camlock Stud
Must Slightly
Rotate Back/Forth
Cap Screw
Installed & Tight
Initial Adjustment:
Camlock Stud Alignment
Groove is Flush with Chuck
Surface
Alignment Marks
Spindle Line
CORRECT
The Camlock Mark
Stops Between the
“V” Marks.
To Correct:
Turn Stud One Turn In
To Correct:
Turn Stud One Turn Out
INCORRECT
The Camlock Mark
Stops Before the
“V” Marks.
INCORRECT
The Camlock Mark
Stops After the
“V” Marks.
Mfg. Since 5/10 Model SB1231
-3-
I N S T R U C T I O N S