Path: utzoo!attcan!uunet!husc6!bloom-beacon!bu-cs!dartvax!eleazar.dartmouth.edu!stevel
From: stevel@eleazar.dartmouth.edu (Steve Ligett)
Newsgroups: comp.sys.ibm.pc
Subject: Re: More on the ST-225, and on Miniscribe
Message-ID: <8997@dartvax.Dartmouth.EDU>
Date: 24 Jun 88 16:42:34 GMT
Sender: news@dartvax.Dartmouth.EDU
Reply-To: stevel@eleazar.dartmouth.edu (Steve Ligett)
Distribution: na
Organization: Dartmouth College, Hanover, NH
Lines: 23
eferences: <4347@zodiac.UUCP> <8839@dhw68k.cts.com> <3594@tekgvs.TEK.COM> <743@csm9a.UUCP>

In article <743@csm9a.UUCP> japplega@csm9a.UUCP (Joe Applegate) writes:
>In article <3594@tekgvs.TEK.COM>, keithe@tekgvs.TEK.COM (Keith Ericson) writes:
>> In article <8839@dhw68k.cts.com> rob@dhw68k.cts.com (Robert Kenyon) writes:
>> 
(much about drive failures deleted)

>After several calls to a freind who used to work for them I found that
>All Miniscribe drives are prone to "stick" when trying to start their
>motor!  This can be remedied by removing the drive and torquing it in the 
>direction of platter motion.
...
>
>    Joe Applegate - Colorado School of Mines Computing Center
>            {seismo, hplabs}!hao!isis!csm9a!japplega

I saw this happen with the ST-506s (modified, of course) that Apple used
with the Lisa.  Someone told me that the heads burnish the platters,
and that they stick together when they stop.  Much like gage blocks.
The spindle motor can't break them loose.  With the ST-506, you can poke
a screwdriver in to turn the motor shaft.  I don't know if the explanation
was correct, but the cure worked.
   Steve Ligett     steve.ligett@dartmouth.edu or
(decvax harvard ihnp4 linus)!dartvax!steve.ligett