Re: HP-41 Card Reader Disassembly Message #4 Posted by dave on 11 Apr 1999, 1:17 a.m., in response to message #3 by dave
Success is mine! Found a small piece of the pink model airplane fuel tubing, the outside diameter measuring 12 divisions, the inside diameter measuring 4 divisions on an engineers scale, 1 inch = 50. Cleaned all the old gooey stuff off the gear, after dismantling the whole giant machine, and slipped it on there, chamfered the edge ever so slightly as to not bind in the housing, reassembled and hey hey we're running like new. An additional tip, while your'e there, clean the magnetic head with a little alcohol on a cotton swab, like we used to do on a cassette player. In dealing with those microscopic screws, use a small touch of cyanocrylate glue on the tip of the screw driver to keep 'em in place till you find the mark. Hope somebody here can benefit from this, I had a real challenge in doing it!
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