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Re: Free upgrade - Dowel Pin

Sure, free to everyone. Did you use a couple wraps of tape to secure the pin to the motor shaft? This is important, as the dimensional clearance is designed to have 100 microns or so of tape thickness.

27 (edited by jdb1930 2013-10-13 22:53:49)

Re: Free upgrade - Dowel Pin

No, I just put a little piece on there to keep it from moving while I put the dowel in place. Didn't realize it was SUPPOSED to be wrapped. Thought it was just to keep it from moving while it was put in place.

28

Re: Free upgrade - Dowel Pin

The motor shaft/socket interface is designed to be a clearance fit to allow for misalignment of the feed screw (auger) and motor shaft. The instructions say:

13.)    Place the 3/32” dowel pin on the center of the motor flat. This forms the key for the motor/auger coupling. Wrap 2-3 times with tape to hold in place.
14.)    Slide the hex socket onto the motor shaft.

The purpose of the tape is not only to hold the pin in place, but to fill that clearance fit in a compliant fashion. A few wraps of tape result in a snug fit, like so:

http://i.imgur.com/je5B79w.jpg

I actually had to lightly tap the socket on for it to bottom out, and it is so snug from the 2-3 wraps of tape that there is no play/looseness by hand (there is still tolerance for a couple degrees of misalignment, but you can't feel this by hand). That is proper installation.