"A pack inspector is a handy thing to have (spinle with microscope and
illuminator on the rack and pinion)"
Can you post a picture of this critter?  Is it something we could 3D print?
Thanks,
Marc
On Thu, Jan 5, 2017 at 6:40 AM, Al Kossow <aek at bitsavers.org> wrote:
  isopropyl alcohol works. TFE is better, if you have
some stashed.
 If you can find them anywhere, Texwipe made a plastic wand that looks like
 a tongue depressor with a slit down the middle and a lint free sleeve
 called the Texsleeve (tx300 sleeve, tx800 wand) that you would use to
 clean heads
 Minor head crashes leave a tar-like residue that you need to remove. A
 pack inspector
 is a handy thing to have (spinle with microscope and illuminator on the
 rack and pinion)
 to look for surface damage.
 On 1/5/17 5:22 AM, Noel Chiappa wrote:
   From:
Klemens Krause 
     > We clean our RK05 disks in a very robust way: with cheap burning 
  spirit
      > and paper towels. ... We rubbed away
thick black traces from 
 occasional
      > head crashes and we never removed the
oxide coating with this 
 torture.
 I am about to get a large batch of RK05 packs, so I am interested in the
 details of this.
 First, what is 'burning spirit'? (I assume this is a straight translation
 into English of some German term, but not knowing German... :-) After 
 poking
  around with Google for a while (hampered no
little by the fact that it's 
 the
  name of a band, and also a term in World of
Warcraft :-), it seems like 
 it
  might be acetone?
       Noel