While looking in the Operator's Manual for my dad's 46 baler I found a paper that must have come with a update package. Here is what the front side of the sheet says..... INSTALLING INSTRUCTIONS Knotter, Hook and Closing Cam Service Package (667 587 R91) for INTERNATIONAL 46 and 56 Twine Balers Read these instructions carefully, paying special attention to the included illustrations before beginning assembly of parts. One each of the following parts make up this service package: 666 511 R92 Knotter Hook, Cpt. 667 533 R1 Knotter Jaw Cam Bolt 667 563 R1 Knotter Jaw Closing Cam U13 033 Closing Cam Spring 1. Visual differences in the old and new hook assembly are illustrated in sketch 1. Remove the old hook from the knotter and install the new one from the package. Check the knotter shaft end play with a feeler gage. Shim under the pinion if necessary to bring the end play into the specified range of .oo5" to .o15". See sketch 2. Check the jaw opening to see that it is 9/16" +/- 1/64". 2. Remove the V-619 Knotter Jaw Closing Cam from the knotter and install the (667 563 R1) cam from package. Use the included (667 533 R1) 3/8" x 2-7/8" square head bolt and (U-13033) spring. Adjust the spring lenght with the knotter hook in home position (jaw completely closed) to suit the twine size used in knotters: that is, for 185 ft. per lb. twine, set the spring length to 1-1/8" to 1-5/32"; for 231 ft. per lb. twine, set the spring length to 1-3/16" to 1-7/32". See sketch 3. INTERNATIONAL HARVESTER COMPANY 401 North Michigan Avenue Chicago, Illinois 60611, U.S.A. 1 010 334 R1 9-17-62 Printed in United States of America I can e-mail you the back side of the sheet showing the sketches if you would like. Good luck and hope this helps. Ken
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