23 May
2010
23 May
'10
8:38 a.m.
Rob Jarratt wrote:
I did it by grabbing the offending material with a very fine and long pair
of forceps and pulling it out. At the time I was quite annoyed and had
other more pressing things on my todo list and that was, in the way,
and I needed that drive working. No disassembly short of removing
the cover.
FYI: the head positioner has very low torque so any sticky will trap
the head.
Allison
-----Original
Message-----
From: cctalk-bounces at classiccmp.org [mailto:cctalk-
bounces at classiccmp.org] On Behalf Of allison
Sent: 20 May 2010 20:13
To: General Discussion: On-Topic Posts Only
Subject: Re: RD53 Restoration
Tony Duell wrote:
After putting back the original boards the disk worked again for a bit. But
it is not working again now and I have determined that I have not completely
cured the sticky bumper because when I placed a very small screwdriver in
front of the bumper the heads moved again.
I am curious about your solution of removing the sticky material entirely, I
can't see how to do that without what looks like some serious dismantling,
something which you recommended against on an earlier thread, maybe there is
an easy way I cannot see. If anyone can tell me how do this I would really
appreciate it (if anyone has a photo showing how this is done that would be
great).
Thanks
Rob
> Yes, this drive did have a sticky bumper. I
resolved it by putting a
>
very
> thin sliver of tape over the sticky bit. I
did not loosen any bolts,
>
but
I wonder if that bumper is no the wrong size, and
that is what's
causing
the problems.Maybe the heads have to be able to
find something o nthe
disk for hte drive to not find an error.
-tony
I've outright removed the bumper with no ill effect. Reason for that
is unsticking it once didn't work as it would stick again. Only
solution
was remove the offending material. Result was a reliable working drive
that when powered off emitted a noticeable "clunk". That has had no
impact on reliability, least not for the last 10 years.