ASR33 platten problem
Dwight K. Elvey
dwight.elvey at amd.com
Thu Oct 6 15:34:26 CDT 2005
>From: "Jim Beacon" <jim at g1jbg.co.uk>
>> > in the process of repairing an ASR33 for someone else, I've found that
>> > platten roller moulding has swollen, so that it no longer turns in the
>> > plates. Has anyone else come across this problem, or know what may have
>> > caused it? (I suspect exposure to a solvent at sometime in the past).
>> > Luckily, I have a spare platten assembly!
>> Well, presumably all you really needed was the roller?
>> Since the old one is useless in its current state, it might be worth
>> putting the roller in a lathe and turning down the bearing areas. This
>> would be a pretty easy job ofr anyone with a metalwork lathe, so even if
>> you don't have access to one yourself, you might find a friend who would
>> do it for you. The sort of people who make model steam engines almost
>> always have a suitable lathe...
>I had considered skimming the roller, and if it was my machine I would,
>however, as the machine is going elsewhere, I'm opting for replacement (I
>don't like my repairs coming back after a couple of months.........)
It is most likely the oil used. Some oils swell the rubber
while others shrink it. Your not suppose to have so much oil
that the platten gets soaked.
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