[R-390] Pinned Down - advice needed

[Chris Kepus]

Thanks to Barry, Mike, Steve, and Jim for your ideas and links.
  
I think I'm in a pickle.  On the PTO gear train, the pin diameters are
estimated (a 1/16 drill bit shank is too large) at 3/64" and and 1/32".  I
checked all the links provided and the thinnest diameter pin punch I could
find is 1/16".  Barry suggested I use a finishing nail after squaring the
end.  I will have to try that but I fear the metal in the nail is not up to
the task.  

I just can't believe that Cosmos, the mfr of the ME-398/U, would have used
roll pins they knew were never coming out. 

Really appreciate your responses...as usual, many hands pitch in to help!
:-)

My ham radio breakfast group, who saw the PTO, pins and all, up close this
AM, was quite surprised by the diminutive size of the pins. The consensus at
the table was either live with it or try to drill them out.  I have some
really small drill bits I got for PCB work. Maybe with the drill
press.......

If anyone else has an idea, please chime in.

73,
Chris
W7JPG

-----Original Message-----
From: Steve Byan [mailto:stevebyan at verizon.net] 
Sent: Tuesday, June 19, 2012 8:59 AM
To: Chris Kepus
Cc: r-390 at mailman.qth.net
Subject: Re: [R-390] Pinned Down - advice needed


On Jun 18, 2012, at 11:02 PM, Chris Kepus wrote:

> Where does one buy the extremely small diameter super strong punches? 
> Has anyone devised a "best" way to remove the pins? Heating the hub?, 
> soaking with penetrant?, drilling 'em out, etc. Yes, I've considered 
> cutting them off with a Dremel with cutting wheel but it would be 
> rather difficult to do so without collateral damage.

Are they dowel pins or roll pins?

Here's some sources for pin punches for dowel pins:

<http://www.amazon.com/General-Tools-SPC75-Drive-8-Piece/dp/B00004T7RT>

<http://www.amazon.com/Starrett-S565WB-Drive-Punch-Pieces/dp/B00008IHTJ/ref=
pd_sbs_indust_2>

<http://www.micromark.com/pin-pusher,10283.html>

<http://www.micromark.com/press-it-precision-arborandpunch-press,9309.html>

<http://www.mcmaster.com/#pin-punches/=i1o76u>


--
Steve Byan <stevebyan at me.com>
Littleton, MA 01460