Jaw screw retaining pin
Set screw
a
Figure 10. Chuck sequence of disassembly.
Care & Maintenance
Always disconnect
machine from power before
performing maintenance or
serious personal injury may
result.
b. Backthejawsoutofthechuck
c. Removethefoursetscrews.
d. Putonsafetyglasses,anduseahammer
anddriftpunchtotapouteachjawscrew
retaining pin.
e. Slidethejawscrewsoutoftheirbores.
4. Usingmineralspirits,cleananddryall
parts.Inspectandxallbores,teeth,pins,
andmatingsurfacesforwear,burrs,galling,
rust,orcracks.
5. Withoutchangingthedimensionofanypart,
useawirebrush,emerycloth,ordressing
stonestoremoveallrust,burrs,oranyhigh
spotscausedbygalling.
6. CoatallpartswithanyautomotiveNLGI#2
grease,andcarefullyre-assemblethechuck
inthereverseordershowninFigure 10.
7. Rotatethechuckkeyclockwiseuntilthe
leadthreadofeachjawscrewisseenjust
enteringthejawguide,theninserteach
numberedjawintoitsnumberedslot.
8. Oneatatime,holdeachjawagainstitsjaw
screw,androtatethechuckkeyclockwiseto
engagethejawscrewwiththejaw,thenfully
threadthejawintothechuck.
9. Alignandre-installthechuck.
Foroptimumperformancefromyourchuck,
followthemaintenanceschedulebelow.Never
hammeronthechuck,jaws,oraworkpiecethat
isclampedinthechuck;andneversubjectthe
chucktoabrasives,ame,orwater.
Daily:
• Check/correctloosemountingbolts.
•Keep the chuck clean and oiled.
•Useavacuum,rag,orbrushtocleanthe
chuckafteruse. Neveruseairpressureto
cleanchipsawayfromachuck.
• Avoidleavingthechuckclampedona
workpiece,unloadthechuckjawsdaily.
• Makesurethechuckkeyisremovedfrom
thechuckwhennotinuse.
Ifthechuckeverbecomesstifftooperate,
itmayhavebeencontaminatedwithmetal
chipsorabrasivesfromincorrectorinfrequent
maintenanceintervals.Ifthisisthecase,the
chuckmustbedisassembled,cleaned,andre-
lubricated.
To disassemble the chuck for a full cleaning
and lubrication service:
1. DISCONNECTLATHEFROMPOWER!
2. Verifythatchuckalignmentmarksare
presentsothechuckcanbere-installedin
thesameposition,andremovethechuck.
Stampthemarksiftheydonotexist.
3. Leavingthecamlockstudsinplace,
disassemblethechuckinthesequencelisted
belowandshowninFigure 10.
a. Placeasetofwoodenblocksunderthe
chucksothecamlockstudsdonotreston
thetable,andclampthechucktothe
tableasshowninFigure 10.
b
c
d
e
d
Mfg.Since5/10 Model SB1231
-7-
INSTRUCTIONS
