MODEL SB1232 14 4-JAW INDEPENDENT CHUCK - Grizzlycdn2.grizzly.com/manuals/sb1232_m.pdf · 2019. 9. 30. · spindle mark Mfg. Since 5/10 Model SB1232-5-INSTRUCTIONS. CAUTION: During
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Chucks are heavy! Get assistance when installing or removing the chuck from the lathe. Wear heavy duty leather boots for foot and toe protection, and keep hands and fingers away from all pinch points. Ignoring this warning can lead to a severe crushing injury or finger amputation!
Specifications• OD Clamping ........ 0.68"–12.2" (17.5–310mm)• ID Clamping ............ 3.74"–12.8" (95–325mm)• Chuck Bore Diameter ................2.95" (75mm)• Chuck Outer Diameter ..........13.78" (350mm)• Maximum Speed ...........................2000 RPM*• Mounting Type ......................... D1-8 Camlock• Construction ..................Fine-GrainCast-Iron• ChuckWeight ....................................... 101lbs• ChuckShippingWeight ....................... 108lbs• Country of Origin ................................ Taiwan
IntroductionTheModelSB1232usesadirectmountD1-8camlocksystemwherethecamlockstudsaredirectlythreadedintotothechuckbodyinsteadof being threaded into a backing plate that isboltedtothechuck.Withoutusingabackplatetomountthechuck,thechuckjawsarepositionedclosertotheheadstockwhichgivesalongerdistancebetweenthejawsandthetailstock.Anotherbenefitisthatthedistancebetweenthejawsandtheoutboardspindlenoseisreduced,soifaspidersupportisusedontheoutboardspindle,shortgunbarrelsandothershorterworkpiecescanbeheldatbothends.
Manufactured with high-tech German CNC
machinery
Fine-grain cast iron body
Hardened steel jaws for durability and extreme clamping force and grip
Independent jaw screws for each
reversible jaw
Direct camlock spindle mounting
Jaw screw retaining pin with lock screws
Safety• Chuck Key Safety:Achuckkeyleftinthe
chuckcanbecomeadangerousprojectilewhenthespindleisstarted.Alwaysremovethechuckkeyafterusingit.Developahabitof not taking your hand off of a chuck key unlessitisawayfromthemachine.
• Disconnect Power: Disconnectthelathefrompowerbeforeinstallingandremovingthe chuck or doing any maintenance or adjustments.Accidentallathestartupcancausesevereinjuryordeath.
• Secure Clamping: Athrownworkpiecemaycausesevereinjuryorevendeath.Whenswappingthechuckjawpositions,keep in mind that maximum gripping forceisattainedatfulljawandjawscrewengagement. Ifonlyoneispartiallyengaged,overallclampingforceisreduced.
• Speed Rates: Operating the lathe where maximumchuckspeedisexceeded,orattoohighofaspeedforanunbalancedworkpiece,cancausetheworkpiecetobethrownfromthechuck.Alwaysusetheappropriatefeedandspeedrates.Athrownworkpiecemaycausesevereinjuryorevendeath.
• Large Chucks: Largechucksareveryheavyanddifficulttograsp,whichcanleadtocrushedfingersorhandsifmishandled.Getassistancewheninstallingorremovinglargechuckstoreducethisrisk.Protectyourhandsandtheprecisiongroundwaysbyusingachuckcradleorpieceofplywoodoverthewaysofthelathewhenservicingchucks.
• Stopping Lathe By Hand: Stopping the spindlebyputtingyourhandontheworkpieceorchuckcreatesanextremeriskofentanglement,impact,crushing,friction,orcuttinghazards.Neverattempttosloworstopthelathechuckbyusingyourhand.Allowthespindletocometoastoponitsownorusethebrake(ifequipped).
• Long Stock Safety: Longstockcanwhipviolentlyifnotproperlysupported,causingseriousimpactinjuryanddamagetothelathe.Reducethisriskbysupportinganystockthatextendsfromthechuck/headstockmorethanthreetimesitsowndiameter.Alwaysturnlongstockatslowspeeds.
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Mfg.Since5/10Model SB1232 I N S T R U C T I O N S
Camlock Stud InstallationThecamlockstudsthatareshippedwiththischuckmaybepre-installedfromthefactory.IfsoskipthissectionandcompleteChuck Installation and Removal on Page 4; otherwise,installthecamlockstudsasoutlinedbelow:
If any cam line stopsoutsideofa “V” mark when allofthecamlockshavebeentightened, removethechuckandadjusttheheightoftheoffendingstud one full turn up or down asillustratedbelow.Afterallcamlocksoperatecorrectly,stampalignmentmarksinthechuckandspindletoensurethatthechuckcanbere-installedinthesamepositionafterbeingremoved.
Do not install the chuck without having the camlock cap screws in place or fully tightened. Otherwise, the camlock studs may turn with the camlocks on release, resulting in the chuck being permanently locked onto the spindle.
Figure 5. Typical alignment of studs and camlock bores.
—Ifaproblemisfoundwiththecamlocklockingorrelease,removetheoffendingstudandcleanitwithmineralspirits.Compareitwithagoodstudforanyinconsistencies,andreplaceitifaproblemisfound.Inspectthebore,capscrew,seatdepth,andthreadswithothersthatareknowntobecorrect.Chaseallthreads,andremoveanyburrsordingsintheseat.Dryouttheborewithcompressedairandlightly re-lubricate with a drop or two of machine oil or way oil.
Figure 4. Wooden chuck support cradle.
Before turning the lathe ON, make sure the chuck key is removed! A thrown chuck key can cause serious injury or death to the operator or bystanders.
1. DISCONNECTLATHEFROMPOWER!
2. Layachuckcradle(seeFigure 4) or plywoodunderthechuckandoverthebedwaytoprotecttheprecisiongroundsurfacesfromdamageandreducetheriskoffingersgettingpinched.
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.
Figure 7. Camlock is fully loosened when the camlock line is aligned with the spindle mark.
Cam line isaligned with the
spindle mark
Mfg.Since5/10 Model SB1232
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I N S T R U C T I O N S
CAUTION: During the next step, the chuck may come off suddenly, so it is important that you are ready to support its weight with a chuck cradle to prevent crushing your fingers or dropping the chuck.
4. Usingadeadblowhammerorothersoftmallet,lightlytaparoundtheoutercircumference of the chuck body to break the chuckfreefromthecamlocksandthespindlenosetaper.
5. Moveeachjawuntilitmakeslightcontactwith the workpiece.
Figure 8. Tightening sequence.
7. Aftertheworkpieceisheldinplacebythejaws,turnthechuckbyhandandpayattention to the workpiece alignment.
—Iftheworkpieceisnotcorrectlyalignedforyouroperation,turnthechuckandmakefineadjustmentsbyslightlylooseningonejawandtighteningtheopposingjawuntiltheworkpieceiscorrectlyaligned(seeFigure 9 for an example).
1
2
3
4
Hole to be bored into workpiece
Figure 9. Non-concentric workpiece correctly clamped in the 4-jaw chuck.
Please Note: We included this parts breakdown for service purposes only. Since many of the parts shown are machined to each individual chuck, they may not be available as replacement items.
Parts DiagramREF PART # DESCRIPTION1 PSB1232001 REVERSIBLE CHUCK JAW2 PSB1232002 CHUCK BODY3 PSB1232003 JAW SCREW4 PSB1232004 JAW SCREW PIN5 PSS02 SET SCREW 5/16-18 X 3/86 PSB1232006 CHUCK KEY7 PSB1232007 D1-8 CAMLOCK STUD8 PCAP09 CAP SCREW 5/16-18 x 5/8
63
2
1
5
87
4
If you need help with your new chuck, contact us at: PHONE: (360) 734-1540 FAX: (360) 676-1075 (International)FAX: (360) 734-1639 (USA Only)EMAIL: [email protected]