[Info-vax] VAXStation trash to treasure
Rich Jordan
jordan at ccs4vms.com
Thu Aug 23 18:56:22 EDT 2018
On Thursday, August 23, 2018 at 2:35:00 PM UTC-5, Steven Schweda wrote:
> > [...] If you gently lift the label on fans, the bearings
> > are exposed and the ball bearing types in particular can be
> > refurbished well given a couple of drops of light machine
> > oil, then put the label back.
>
> I do this too, (too) frequently. Eons ago (1980's?), when
> the (oddball) 10V fan in a MicroVAX II BA123 got loud, I did
> my first emergency oil infusion, in the hope that I could
> find a cheap replacement fan before the thing seized up
> completely. Eventually, I found a nice (and cheap)
> replacement at the local surplus store (ax-man.com), and put
> it on the shelf until the re-oiled loud fan got loud again.
> Years later, it was still on the shelf. I use Mobil 1, in
> whichever viscosity my current car uses. I often use fresh
> tape to replace the label, but then tape the label on to
> avoid information loss.
>
> Ball bearings may do badly without lube, but it's even
> more important for sleeve (sleaze) bearings.
Steve
I'm pretty sure you're the one who told me about getting model helicopter bearings to fix a hard to get DS10-L fan. The VAXstation is sadly having to wait but I have a spare power supply still that was taken from a retired machine, and had noisy fans; I'm planning on taking care of its fans first then swapping supplies.
Rich
More information about the Info-vax
mailing list