Micropolis 1525 stuck heads

[Jonathan Stone]

 I had suggested a hair-dryer, as recommended circa 20 years ago for drive "stiction" after disuse. It seems that worked.
     On Sunday, September 19, 2021, 08:58:57 PM PDT, Bill Degnan via cctalk <cctalk at classiccmp.org> wrote:  
 
 I have simply opened and physically moved the disk counter clockwise a
turn, in a clean dust-free place.  Or try putting in an oven on warm for 3
minutes a side, all four sides to loosen the grease.  Might sound crazy but
these have worked for me before
Bill

On Sun, Sep 19, 2021, 10:18 PM Zane Healy via cctalk <cctalk at classiccmp.org>
wrote:

> 20+ years ago, I remember people talking about disassembling these to fix
> the issue.  I’ve never tried.  Though I have one or two that might benefit
> from is.  If the CLASSICCMP archives from ’97-2000 are online, I’d
> recommend running a search against them.
>
> Zane
>
>
>
>
> > On Sep 19, 2021, at 3:58 PM, Chris Zach via cctalk <
> cctalk at classiccmp.org> wrote:
> >
> > Ok, so out of the basement came a Micrapolis 1325 (the old Dec RD53
> disk) with what appears to be stuck heads. Rotor tries to move under power
> but can only take out slack. Will move backwards a bit.
> >
> > Is this stuck head, and what would be the best way to free it? The
> reason I'm asking is this disk had a SA1000 adapter mounted under it so I
> am pretty sure it was a PERQ disk. Which means data may be priceless. And
> of course it's stuck.
> >
> > Thoughts?
> >
> > CZ
> >
>
>