19 May
2010
19 May
'10
1:58 p.m.
-----Original Message-----
From: cctalk-bounces at classiccmp.org [mailto:cctalk-
bounces at classiccmp.org] On Behalf Of Tony Duell
Sent: 19 May 2010 20:25
To: cctalk at classiccmp.org
Subject: Re: RD53 Restoration
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
there is a bit of play in the heads when they are at rest and fully
retracted.
Regards
Rob
Could that be because the new boards are a
different rev and perhaps
expect
It's always possible. This is one reason why I really dislike
board-swapping. It is much easier to repair a configuration that has
worked once than one you don't know if it should work.
I wonder if this drive depends on reading something from the platter as
ssonas the motor is up to speed (say a servo pattern). if so, then if
the
heads are moved to far in or out , it may fail
Did this drive suffer from the well-known 'sticky bumper' problem? If
so,
what have you done about it? Is it possible that if you just removed
the
old bumper that the heads are outside the servo area sometimes?