[ARC5] worn dyno commutator

[J Mcvey]

I'm not sure that there is enough "meat " left on the commutator to turn it on a lathe . It has a conical shaped grove worn in it. 

That "electronic armature" replacement looked pretty clever!
  

    On Thursday, April 6, 2017 12:41 PM, Leslie Smith <vk2bcu at operamail.com> wrote:
 

   Hello Jim,
  That naughty fellow Mike Hanz has been repairing things again - specifically dynos.
  Visit www.aafradio.org.   This is "AAF-radio" not "A-afraid-i-o".
  Then follow the link to restoration center and then dynamotor maintenance.

  Oh, does your dyno look as bad as the one in Mike's photo?
   (I hope not!)  
  As for repair, Mike obviously knows a good repair shop, because he has a 'before' and 'after' photo.  Maybe you can make your dyno look as good as his!


   73 de Les Smith
   vk2bcu at operamail.com

  P.S.  I think this fellow, Mike Hanz, is having an April fool's joke with me!  It's not the same dyno!  Look at the two photos!  The first dyno (the rusty one) is quite small compared with the much larger dyno in the lathe!  No-one could make the rusty hulk look like the dyno in the second photo!   I have another explanation.  Today is April 6th and that's only a few days after April 1.   Oh, oh, oh!  You got me there, Mike!

But take heart Jim.  In the very first paragraph Mike says he's been saddled with every-one's dyno problems (and I quote):  ".. somehow I’ve ended up saddled with everyone’s dynamotor problems .."  By this I think Mike means you should send him YOUR dynamotor!!  HA!

HA?  (You didn't think that was funny?  Aw - you ruined my day)

                        o-o-o

On Fri, Apr 7, 2017, at 02:05, J Mcvey via ARC5 wrote:

What do you guys do for worn commutators? I just opened up a DM-32 that I recently acquired and it was full of oily dirt.
It' s the dirtiest interior I've ever seen for an enclosed unit! It must have been used in a desert sand storm or something...
Can they be economically repaired or is it scrap?

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