Removing Grease Pencil Marks On Books

From: Tony Duell <ard_at_p850ug1.demon.co.uk>
Date: Tue Aug 12 17:35:01 2003

> I use the spray on brake cleaner to clean off the old dried up grease on
> gummed up floppy drives. (The HP dual sided drives are notorious for this.)

I use propan-2-ol for this. I recently did the drive in my Integral -- it
was so gummed up that one part appeared to be a stepped shaft. After
cleaning, it was shown to be a plain shaft with a couple of spacers on it!.

I would be very careful about spaying anything into a floppy drive. Not
only might it just move the gunge elsewhere (like onto the head!), but
also you don't want to disolve plastic parts, or even worse the enamel
insulation on the motor windings and head -- at least one enamel is
attacked by methanol! I prefer to take things a little more slowly, take
the disk holder apart, and clean all the parts seprately. It takes well
under 1 hour to do this, and I end up with a perfectly working drive.

-tony
Received on Tue Aug 12 2003 - 17:35:01 BST