[GreenKeys] Re: Model 15 spacing and shift problems

[gil smith]

Hi Jim:

I fixed the double-spacing problem!    I found the spacing escapement 
mechanism, and the rear pawl was free.   Until you mentioned a second pawl, 
I didn't know it was there.  But after positioning the carriage at the 
right side, and looking down from the front, I could see the extra 
linkages.   Upon comparing to my other M15, I found the offending frozen 
front pawl.  Thought I had freed everything up, but this pawl was 
well-hidden.  A bit of oil and wiggling and it loosened up -- the machine 
spaces properly now.

But, I'm still baffled with the LTRS/FIGS problem.  I put a good keyboard 
in the unit so I could check it a bit easier.  If the carriage is at the 
left side, I can shift between LTRS and FIGS just fine.  However, any key, 
including space, will immediately shift it from LTRS to FIGS, where it 
stays all the way to the end of the line.

Another odd thing, when the carriage is at the left side, I can shift 
between LTRS and FIGS properly, as mentioned already.  This shifting still 
works fine when the carriage is positioned within about the leftmost third 
of the line.  However, when the carriage is positioned into about the 
rightmost two-thirds of the line, it will no longer latch down in the LTRS 
position.  The LTRS mechanism still cycles, but the carriage returns to the 
FIGS position.

I tried making sense of the mechanism, but there's a lot of stuff moving at 
once.  And I don't quite understand why typing a char would push the 
machine into the FIGS state.  Where do I look next?

Since most of this machine has had frozen parts, another one would be a 
good bet.  Or, is there an adjustment perhaps that could cause this behavior?

gettin' there,

gil


At 07:13 PM 9/14/2004, you wrote:
>On the extra spaces, check the spacing escapement - two fairly thin pieces
>of metal that engage the spacing clutch and must be free to move
>separately from each other.  This is frequently gummed up.
>
>On the LTRS-FIGS thing - well you just need to turn it through by hand
>while moving the selector armature with your fingers so you can watch the
>function bars behind the vanes and see what they are doing.  I spoze you
>could send the characters from the keyboard while you turn the motor by
>hand, but it's easy enough just to work the armature by hand to set up
>the bits.
>
>
>
>--
>
>jhhaynes at earthlink dot net

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