[GreenKeys] Kleinschmidt FN-52/GGC restauration

[Duncan Brown]

Nick,

First, the official nomenclature of the unit is the "TT-76/FG", major 
component of the AN/GGC-3.  This was the standard tape machine for the 
US Army from c1952 - c1990. There may be a "TT-76" label under the paper 
holder.

This unit was its own table (which is where the FN-52 label comes from), 
with legs that screwed into the base. Later units (TT-76A, TT-76B, 
TT76C) did not have the legs and also had different electrical 
connectors. Most of the mechanics were the same, however.

The original manual is TM 11-2225. Then they changed the numbering 
system and the newer manual is TM 11-5815-238-xx, where xx=12 for 
operator's manual; xx=35 for maintenance manual. If you don't have a 
manual, they can be downloaded at http://rattrig.com/manuals/tm's.htm.  
Look around that site to see how these machines were used by the US Army.

These units are fairly easy to work on, as most everything is out in the 
open. Note that the reperf requires 7/8" paper tape; it prints on the 
wide edge. But the Tape Reader (no "Transmitter Distributors"  in 
Kleinschmidt equipment!) will take the narrower, 11/32" tape.

One thing to look out for is that the selector magnet uses a DC current 
bias (instead of a spring) which makes the Red Receive cord polarity 
sensitive.

With the power on, but motor off, and the Selector sw in position 3 
"Local Repunch", press a key and turn the motor by hand (CW - I think) 
and you should see the machine do its thing.

Give it a good cleaning & lubricate all the felt clutches and it should 
be good to go!

Have fun,

Duncan, K2OEQ
USASA    31J30


On 11/10/2018 10:54, Nick wrote:
> I aquired this machine a few months back and I am ready to bring this 
> little marvel back to life. Never worked on one of those before and I 
> am wondering if you guys know what to watch out for - anything 
> special, difficult, tricky, sensitive, headache creating, etc ?
>
> In my workshop as I type to figure things out. Attached are a few pics.
>
> Nick  -  N0NCQ
>
>
>
> Sent from my T-Mobile 4G LTE Device
>
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