Instructions for Use of Somma Resharpenable Quick-Change Shave Tool Holders RQCMS-2 and RQCMS-3

TO SIMPLIFY PRESETTING OF ROLL, THE SHAVE TOOL AND ROLL HEAD ASSEMBLY CAN BE REMOVED FROM THE SHANK FOR SETTING ON THE BENCH AND REPLACED WITHOUT AFFECTING THE SETTING OF THE TOOL.

WITH SHANK CLAMPED INTO MACHINE MOUNTING BLOCK, SHAVING HEAD (PT. 2) CAN BE REMOVED BY BACKING OFF DOVETAIL CLAMP SCREW (PT. 39) THAT SECURES DOVETAIL CLAMP (PT. 38).  SLIDE HEAD OUT SIDEWAYS, TOWARDS YOU AND AWAY FROM SPINDLE.  AFTER HEAD IS PRESET, SLIDE HEAD BACK INTO DOVETAIL IN SHANK AND CLAMP SECURELY IN PLACE.

TO PRESET INSERT AND ROLL RELATIONSHIP:

LOOSEN SCREW (PT. 22) AND DROP SWINGING SIDE PLATE (PT. 5) DOWN TO CLEAR INSERT POCKET.  ROTATE ACTUATOR SCREW (PT. 17) COUNTERCLOCKWISE UNTIL CLAMP WEDGE (PT. 4) IS RAISED ENOUGH TO ACCEPT INSERT.

INSTALL FORMED INSERT INTO POCKET, BEING CERTAIN THAT OPENING IS CLEAN AND FREE OF CHIPS.  RAISE SWINGING SIDE PLATE AND LOCK IN PLACE WITH SCREW (PT. 22).  MAKE SURE INSERT IS FULLY SEATED AND THEN CLAMP SECURELY BY ROTATING ACTUATOR SCREW (PT. 17) CLOCKWISE.

ASSEMBLE ROLL INTO ROLL SLIDE USING PROPER SPACERS SO THAT ROLL CONTACTS THE DESIRED LENGTHWISE SURFACE OF THE PART.  IF THE CONFIGURATION OF THE PART IS SUCH THAT THIS CAN NOT BE ACCOMPLISHED WITH THE SPACERS SUPPLIED, IT MAY BE NECESSARY TO REGRIND THE ROLL TO SUIT, OR MAKE UP SPECIAL SPACERS.

NOTE: ROLL HOLDER (PT. 3) HEAD CAN BE SET SO THAT ROLL IS EITHER EVEN WITH SPINDLE SIDE OF SHAVE INSERT OR EVEN WITH OUTBOARD END OF INSERT BY REMOVING ROLL ADJUSTING PLATE (PT. 32) REMOVING ROLL SLIDE FROM BODY (PT. 2).  ROTATING SLIDE 180 DEGREES AND REASSEMBLING INTO BODY.

SELECT A GAGE BLOCK OF THE SAME WIDTH AS THE DIAMETER OF THE PART ON WHICH THE ROLL WILL BE ROLLING.  PLACE THE GAGE BLOCK ON THE PORTION OF THE INSERT THAT FORMS THAT DIAMETER.

LOOSEN THE ROLL SLIDE CLAMP (PT. 7) THEN RETIGHTEN UNTIL ROLL SLIDE IS SNUG BUT MOVABLE.  ADJUST ROLL SLIDE (PT. 3) BY ROTATING SLIDE ADJUSTING SCREW (PT. 15) UNTIL ROLL BEARS LIGHTLY ON THE GAGE BLOCK AND ROLL ROTATES WITH GAGE BLOCK WHEN IT IS MOVED IN OR OUT.  LOCK ROLL SLIDE IN PLACE BY TIGHTENING ROLL SLIDE CLAMP SCREW (PT. 7) SECURELY.

REMOUNT SHAVE HEAD IN SHANK BEING SURE THAT IS IS PUSHED ALL THE WAY IN AGAINST THE STOP SCREW AND THE DOVETAIL CLAMP IS LOCKED SECURELY IN PLACE BY TIGHTENING DOVETAIL CLAMP SCREW (PT. 39).

SET HEAD FOR PROPER FLOATING RELATIONSHIP TO WORK PIECE BY USING DIAMETER ADJUSTING SCREW (PT. 13) TO RAISE OR LOWER SHAVING HEAD UNTIL O.D. OF ROLL IS ABOUT 1/32" BELOW THE DIAMETER IT IS TO ROLL ON.  LOCK SETTING IN PLACE WITH LOCK NUT (PT. 14). (ROLL SHOULD LIFT THE SHAVING HEAD THIS AMOUNT WHEN IT APPROACHES AND RIDES UP ON THE WORK PIECE.)

IT MAY BE NECESSARY TO FINE TUNE THE INSERT TO ROLL SETTING TO GET THE PROPER PART DIAMETERS.  DIAMETER CORRECTIONS ARE MADE BY MOVING THE ROLL UP OR DOWN AS PREVIOUSLY DESCRIBED.

LENGTHWISE ADJUSTMENTS ARE MADE BY MOVING THE MOUNTING BLOCK UNTIL FORM OF SHAVE TOOL IS IN THE PROPER RELATIONSHIP TO THE PART AS ROUGH FORMED.

TOOL IS NOW READY FOR USE.  IF PART IS TAPERED, TAPERS CAN BE CORRECTED BY ADJUSTING TWO SCREWS IN MOUNTING BLOCK THAT CONTACT FLAT ON END OF SHAVE TOOL HOLDER SHANK.

HOLDER HEAD IS SPRING TENSION MOUNTED TO COMPENSATE FOR MACHINE VARIATIONS.  SPRING TENSION CAN BE ADJUSTED BY ROTATING TENSION SCREW (PT. 12B) IN TO INCREASE TENSION, OUT TO DECREASE.

TO REMOVE DOVETAIL SLIDE TO CLEAN OUT CHIPS OR FOR ANY OTHER REASON:

REMOVE THE BOTTOM SPRING ADJUSTING PLATE (PT. 12A) AND SLIDE DOVETAIL HEAD UP AND OUT OF SHANK. TO REASSEMBLE SLIDE DOVETAIL HEAD, BACK INTO SHANK AND RECLAMP SPRING ADJUSTING PLATE SECURELY.  DO NOT DISTURB GIB SETTING.

TO ADJUST SLIDE TENSION FOR WEAR:

LOOSEN THE 3 GIB CLAMP SCREWS (PT. 10) AND THEN RESNUG SCREWS SO THAT GIB IS CLAMPED DOWN SECURELY BUT CAN STILL BE MOVED WITH PRESSURE.  NEXT MOVE HEAD UP AND DOWN WHILE TIGHTENING GIB ADJUSTING SCREWS (PT. 9) UNTIL HEAD LOCKS UP.  THEN BACK SCREW OFF UNTIL HEAD SPRINGS BACK.  DO THIS ONE ADJUSTING SCREW AT A TIME UNTIL DESIRED TENSION IS OBTAINED ON BOTH SCREWS.  THEN TIGHTEN DOWN THE 3 GIB CLAMP SCREWS SECURELY.  CHECK THAT SLIDE TENSION IS STILL AS DESIRED AND TOOL SHOULD BE READY FOR USE.

FOR BEST SIZE CONTROL AND FOR LONGEST LIFE, INSERT SHOULD BE SHARPENED AS SOON AS CUTTING EDGES START TO SHOW WEAR OF .005" MAXIMUM.

WHEN APPROXIMATELY 1/8" HAS BEEN RESHARPENED OFF THICKNESS OF INSERT, INSERT WILL NO LONGER BE ABLE TO BE CLAMPED IN HOLDER.  HOWEVER, A 1/8" THICK MATCHED FORM BACKUP SPACER IS AVAILABLE THAT CAN BE PLACED BEHIND INSERT FOR SUPPORT.  THIS SPACER ALLOWS FOR ADDITIONAL RESHARPENABLE TOOL LIFE OF 1/16" TO 1/8" DEPENDING ON CONFIGURATION OF INSERT FORM.