Southbend SB1231 Lathe User Manual


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7.  Tightencamlocksinastarpatterntodraw
thechuckinevenlyandreducethechance
ofmisalignment.Makesuretotighten
camlocksinanincrementalmannerto
ensurethatonecamlockdoesnotgetfully
tightenedbeforetheothers(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
willseatwiththespindlenose.Whenfully
tightened,thecamlinewillfallbetweenthe
two"V"marksonthespindlenose,asshown
in Figure 6.
Figure 6. Camlock is fully tightened with the camlock
line positioned between the "V" marks.
— Ifthecamisfullytightened,butthecam
line ispositionedoutsideofthe“V”marks,
removethechuckandadjusttheheightof
the offending camlock stud,asoutlinedin
Camlock Stud Adjustment on Page 3.
8. Wheninstallationiscompleteandyouare
satisedwiththeresults,lightlystampaset
ofalignmentmarksonthechuckandspindle.
Note: Alignmentmarksensurethatthe
chuckcanbere-installedinthecorrect
positioneverytimeforconsistentchuckand
spindlealignment.Italsoallowsforthesame
camlocksandstudstooperatetogetherfor
consistentlockingandunlocking.
Cam line is between
the "V" marks
PINCH HAZARD! Protect your hands and the
precision ground bedways with plywood or a
chuck cradle when removing the lathe chuck!
The heavy weight of a falling chuck can cause
serious injury.
To remove the chuck:
1. DISCONNECTLATHEFROMPOWER!
2. Layachuckcradleorplywoodunderthe
chuckandoverthebedwaytoprotectthe
precisiongroundsurfacesfromdamageand
reducetheriskoffingersgettingpinched.
3. Loosenthecamlocksbyturningthekey
counterclockwiseapproximatelyone-thirdof
aturnuntilthemarkonthecamlockaligns
withthespindlemarkonthespindlenose
(seeFigure 7).Ifthestuddoesnotfreely
releasefromthecamlock,wigglethecamlock
untilitstudreleases.
Note:Camlockscanbecomeverytight.Acheater
pipemaybeusedtoaddleveragewhen
loosening.
Figure 7. Camlock is fully loosened when the camlock
line is aligned with the spindle mark.
Cam line is
aligned with the
spindle mark
Mfg.Since5/10 Model SB1231
-5-
INSTRUCTIONS
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