Re: A.O. 820

From:"A. Erickson" <>

The only time that happened to my old "820" i found that the spring loaded
arm which places a "pin" in contact with the notched wheel had lifted out
of alignment.  Set the advance back as far as it will go, using the wheel
on the left side of the microtome,lift up the grey housing to get inside
the microtome, and then re-cock the spring loaded arm.  Andra Erickson, UW
RPRC Seattle, Wa

On Tue, 26 Jun 2001, Mary Lou Norman wrote:

> Hi,
> Looking for mechanically minded folks. A newbie decided to work the wheel
> on an A.O. 820 microtome backwards. Now the block is not advancing. No
> ratchet sound. Hopefully this is an easy  fix and I'm missing it. Any
> suggestions would help.
> Thanks,
> Mary Lou

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