Hardinge 20C Instructions-parts List

B -0009500-0067 20C DEAD-LENGTH® STEP CHUCK Stop Rod Spring Retainer Nut Nut Outer Collet Stop Body Belleville Springs (2) Coil Spring 1-1/8" H A R D I N G E P A T E N T E D 2 0 D S HA R DI N G E 20 DS P A T E N T E D 1-1/8" Stop Rod Nut S t o p B o d y D.L. Step Chuck Stop Rod Drive Pin QUICK START Quick Start instructions quickly guide you through the procedure. Read the main instructions first to thoroughly un- derstand how to use the product. • Clean parts & headstock spindle • Set face of Stop Rod 1-1/8" from Stop Body face & secure • Thread & Secure Stop Rod- Body Assembly into D.L. Step Chuck • Coat Bearing s ...

Step Chuck on the Lathe QUICK START Boring Out -D.L. Step Chuck • Insert Dead Length Step Chuck & Stop Sub-Assembly into the Outer Collet & Spring Retainer Sub-Assembly. Align the Drive Pin (shown on front page, 1st Figure) in the Step chuck with the Slot in the face of the Outer Collet. • Slide the 2 Belleville Spring Washers on the Threaded Stop Rod with the small end of the first washer towards the Spring Retainer and the Large end of the second washer flush with the large end of the first washer, as Illustrated. • Slide the compression ...

Bore out to a dimension .001" Greater Than the O.D. of the workpiece. Maximum Holding Power: Bore out to a dimension .001" to .002" Less Than the O.D. of the workpiece. When a stepped type bore is required, finish bore to the proper size and then face the bottom of the bore to provide a square shoulder. It is recommended that the corner where the bore and shoulder meet be undercut to insure that the workpiece fully seats against the face of the step. • Using the Illustration as a guide for Maximum Diameters and Depths, Drill, Rough Bore and then Finish Bore the Step Chuck out to the proper size for the workpiece. ...

All marks indicated by ® and ™ are trademarks of Hardinge Brothers, Inc. Mounting a Machined Dead-Length® Step Chuck in the Lathe Litho in U.S.A. April 1996 Form No. B-67A Part No. BA -0009500-0067 QUICK START Mounting-D.L. Step Chuck • Clean Spindle & D.L. Step Chuck • Open the Collet Closer • Slide DL Step Chuck into spindle aligning Key with Key- way • Put the workpiece in the Dead- Length Step Chuck • Adjust Closer until back face of DL Step Chuck just Con- tacts spindle face • Turn Closer 1/2 Turn more & Continue to next screw hole. • Tighten Screws in Closer • Do not ex ...