14" hard drive refurb....

From: jpero_at_cgocable.net <(jpero_at_cgocable.net)>
Date: Tue Aug 10 15:46:24 1999

> Date: Wed, 11 Aug 1999 01:22:16 +0100 (BST)
> Reply-to: classiccmp_at_u.washington.edu
> From: ard_at_p850ug1.demon.co.uk (Tony Duell)
> To: "Discussion re-collecting of classic computers" <classiccmp_at_u.washington.edu>
> Subject: Re: 14" hard drive refurb....

> >
> > <> One person told me that if the heads were heavily oxidized, that they cou
> > <> be cleaned with a soft toothbrush and TOOTHPASTE (followed by a rinsing i
> > <> 91% alcohol)???????
> >
> > Don't. has that person ever dealt with ceramic heads?
>
> I'll go along with that.
>
> >
> > Clean it with 91% ISOPROPANAL (alcohol). inspect first during and after.
>
> One minor correction (probably a typo). The stuff you want is
> isopropanol. Propanal does exit, it's an aldehyde, something like
> C2H5COH. I can't see how an iso-version of that can exist, though - the
> nearest you'd get is CH3-CO-CH3, propanone (the new name for acetone).
> But keep that away from disk heads...
>
> > Most heads are ceramic and oxidized is not likely.
>
> I suspect 'oxidized' == 'covered with iron oxide from the disk platter'
> here.
>
> -tony

If that is so hard to clean, then this solution:

Find a sharp edged hard plastic and dip that in that cleaner and try
to "chip" off the crusted up of oxide/melted binder?
Be careful not to bend or move too much on that flex suspension.

One time I had a FD with a head that looked like "pit" turned out
very hard to remove dirt and needed chipping off with a fingernail
followed with cleaner.

Wizard
Received on Tue Aug 10 1999 - 15:46:24 BST