[GreenKeys] Minor problem with my Model 20

[Steve Cichorsky]

It's been over thirty years ago but as I recall, we would service our M15 
wireservice machines by putting the typing unit in a parts cleaning tank 
filled with kerosene.

 But first we would remove the mainshaft and disassemble it separately. Next 
we would install new felts that we had soaked in oil and then once 
assembled, force oil generously into the shaft. ISTR removing the fiber 
gears and platen as well.

 Then we would apply a thin coat of grease to the cams. After the typing 
unit was removed from the tank and allowed to dry, we would lube all 
appropriate parts that came in contact with each other including the 
bearings, etc.  Often times a rookie would then spray oil very liberally 
over the surfaces and we had to remind him that oil cuts grease and 
diminishes its effectiveness.

I probably left something out since it's been so long.

Even though they haven't been fired-up in recent years, I still have a 
number of those machines along with the large Associated Press and metal 
U.P.I. signs as well as the Lenkurt terminal units with silk-screened 
wireservice logos on the front covers. I remember talking to someone who was 
starting a teletype museum in SoCal  about 10-15 years ago and trying to get 
them to pick-up the machines and documentation as well as the spare parts 
and early Morkrum-Kleinschmidt equipment that I had acquired through the 
years, but they never showed up. I have since packed it all away and intend 
one of these days to fire it up, so it worked out well in the end.





----- Original Message ----- 
From: "Sheldon Daitch" <sdaitch at kuw.ibb.gov>
To: "Jim Haynes" <jhhaynes at earthlink.net>
Cc: "Greenkeys" <greenkeys at mailman.qth.net>
Sent: Tuesday, January 20, 2009 11:35 PM
Subject: Re: [GreenKeys] Minor problem with my Model 20


> IIRC, that is exactly what we did at the AP bureau for cleaning
> M-15 and M-20s.  Well, maybe it was some kind of kerosene and
> degreaser mix.  A dip in the vat seemed to soften all the crud, and
> then a spray of hot water to clean off the degreaser, and then a
> relube of everything.
>
> With a senior moment here, I am not sure if we pulled off the
> selector magnets or not, I just don't remember.  I think we also
> pulled out the main shaft as well, since it was really easy to pull
> apart and clean up.  Degreasing the main shaft was an issue, since
> the degreaser would get into all the felts, both the ones on the main
> shaft and the ones inside the core of the main shaft.
>
> 73
> Sheldon
>
> Jim Haynes wrote:
>> One man I knew, a professional freelance Teletype repairman, used
>> a soak in kerosene followed by standard oiling and greasing to
>> clean machines that had sat around for a while.  I don't know if
>> this was approved by Teletype.
>>
>> My first TTY machine was a Model 15, which I put together essentially
>> out of parts, as Ray Morrison gave me a box containing a broken
>> machine and various loose parts.  I took it absolutely apart and
>> used Gunk and rust remover on it.  I'm sure that was not necessary,
>> and in fact I later learned from the manual that some things are
>> put together at the factory and are not meant to be taken apart in the
>> field.  But it did work fine.
>>
>>
>>
>>
>> jhhaynes at earthlink dot net
>>
>>
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