[GreenKeys] M15 Carriage Return and Bell Troubleshooting

[Jordan Spencer Cunningham]

After some re-analysis of the bell and CR mechanisms and some hints from
Jim K8ARY (thanks again, by the way), I found that some springs have lost
their spring. CR and BELL work as expected if I tug on these two offending
springs to give them a little extra force while depressing the respective
key.

Thanks again. I'm sure I will have more questions as I continue my work.

--Jordan

On Sun, Jan 14, 2018 at 1:07 AM, Jordan Spencer Cunningham <js at cunni.co>
wrote:

> This is my first real foray into working on teletypes. I've had a model 15
> and 19 in my basement since I joined Greenkeys last year, and I'm finally
> getting around to getting them up and running.
>
> I've been working on the 15 for starters, and thankfully it's in really
> good shape mostly just needing a bit of lubrication after sitting in
> someone's basement since when he became SK in the 70s.
>
> I only have a couple things that are stumping me now, so I hoped I might
> put the problems out here to see if any of you wizards can help me find and
> correct them, or at least point me in the right direction. I've been poring
> over manuals and diagrams but still don't really have an idea of what the
> issue could be.
>
> I have the machine hooked up to a loop and have tested all LTRS and FIGS,
> and all work flawlessly except for BELL and CR. When I strike the key for
> either of these, the main shaft rotates, and I can see the vanes and bell
> cranks move to the appropriate mark positions, but the bell does not strike
> nor does the carriage return. I can manually force a carriage return by
> pushing in the lock bar, but not otherwise.
>
> Any ideas will be most welcome, and if I'm missing something completely
> obvious to someone with a drop of teletype experience, you don't have to be
> gentle. I've taken many a beating in my day and can handle another.
>
> Thanks much, 73, &c.
>
> --Jordan
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/greenkeys/attachments/20180114/ddf9a0fb/attachment.html>