wheels@mks.UUCP (02/16/87)
When I picked up my SF354 disk drive to move it, something went KLUNK inside. I didn't figure I should use it without checking. Here is what I found... There was a brass piece, cylindrical, about 1/4 inch tall and somewhat larger in diameter, with a hole still holding the screw that used to attach it, and another dimple which had been milled out. As you can imagine, this would KLUNK nicely. The apparent mounting point (the only one I could see with a missing screw) was the top end of the stepping motor shaft! It appears that this is simply dead weight, perhaps intended to alter the mass of the stepping motor to make it step properly. It certainly sounds different now. I think this has been loose since I got the machine. I have heard people discuss the old noisy drives vs. the new quiet drives -- could this be the only difference? gerry -- ------- Gerry Wheeler {allegra,decvax,ihnp4}!watmath!mks!wheels Mortice Kern Systems Inc.