[GreenKeys] 28ASR TD - gear worn?

[COURYHOUSE at aol.com]

ok!    yea  sometime  a subassembly   swap out  is  the quickest! looking 
at the diagram  I see what  you mean   We have  2  28 ASRs ... think   we 
will  keep an eye out  for reader assemblies  ...no immediate  need  but 
something to  consider for the future.
 
 
In a message dated 2/22/2014 8:51:29 P.M. US Mountain Standard Time,  
w2hx at w2hx.com writes:

 
Thanks,  Ed. But I doubt I would ever be able to replace that gear if I had 
spare. that  looks like a b*(*%tch to change. So maybe just an entire spare 
TD  assembly! 
 
 
From:  COURYHOUSE at aol.com [mailto:COURYHOUSE at aol.com] 
Sent: Saturday,  February 22, 2014 10:48 PM
To: W2HX;  greenkeys at mailman.qth.net
Subject: Re: [GreenKeys] 28ASR TD - gear  worn?

 
well,  you can  do that but also start a  little  box  of hi  failure  
items  like those  gears  for  future   use.....
 
Ed#
 

 
 
In a  message dated 2/22/2014 4:41:34 P.M. Mountain Standard Time, 
_w2hx at w2hx.com_ (mailto:w2hx at w2hx.com)   writes:

 
hey all, thanks for the folks who responded for help  with the tape out 
pin.  
Now that I am getting ready to re-assemble the TD, I  am noticing the the 
main brown gear (is it fiber?) that mates with the shaft  on the base is 
worn. Two adjacent teeth are shot and another tooth is shot  about 180 degrees 
away from the two adjacent shot teeth.  Is this a  problem I should worry 
about? Looking at the mechanism, I would say that I  would never have the 
ability to replace that gear if I needed to. Maybe I  should locate a spare TD? I 
see two on ebay right now. 
thoughts?  
 
 
From:  _greenkeys-bounces at mailman.qth.net_ 
(mailto:greenkeys-bounces at mailman.qth.net)   _[mailto:greenkeys-bounces at mailman.qth.net]_ 
(mailto:[mailto:greenkeys-bounces at mailman.qth.net])   On Behalf Of W2HX
Sent: Saturday, February 22, 2014 6:15  PM
To: _greenkeys at mailman.qth.net_ (mailto:greenkeys at mailman.qth.net) 
Subject:  [GreenKeys] 28ASR TD question

Hello all, 
Things are getting exciting around the shack here as I  get the ST6's and 
computer and radios wired up. I decided to try to fix a  long time problem on 
my TD on my 28ASR.  The tape out mechanism was  always "pushed in" so it 
would never recognize the end of a tape. The  printer would keep running after 
the tape was done.  So I decided to do  something about. 
Well, what an odyssey.  I finally found some  little lever, deep inside the 
TD that was wedged back. I pushed it forward  and it released, putting more 
tension on a lever that pushes the pin  out.  So as of now, I have the pin 
with a good amount of tension on it  and it pushes in and releases back out 
fine. 
My question is about the electrical contacts that this  pin actuates.  
There is only one pair of wires coming of the  switch.ICan someone tell me if 
these contacts should open or close when the  pin is pushed in?  Once I get 
this answered I will (attempt) to  reassemble everything and put it back 
together. 
thanks in advance! 
73 Eugene W2HX 

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