[GreenKeys] 28KSR with Auto CRLF issue

[Nick England]

I am still puzzled why this occurs only on auto-CR at end of line.
Shouldn't the same thing happen if you are at character 72 and manually hit
CR?
Just thinking out loud here - if the dashpot wasn't cushioning the return
properly, then you could get a bounce at the return to the left margin. The
amount of bounce would vary with the distance of return and also the return
spring tension. See adjustment 2.41 for setting the dashpot.

Cheers,
Nick England K4NYW
www.navy-radio.com


On Tue, Dec 14, 2021 at 2:28 PM Mike <mmcauley at cox.net> wrote:

> Update:
> I relieved the tension on the CR return spring somewhat (about 1-1/2
> turns) and the carriage comes back another 4 spaces now when Auto CRLF
> activates.
> So it's within 5 now of the left margin.
>
>
> Mike
> KD7VRG
>
>
> -------- Original message --------
> From: Jerry Murphy <gfmurphy at earthlink.net>
> Date: 12/12/21 2:40 PM (GMT-07:00)
> To: Mike <mmcauley at cox.net>
> Subject: Re: [GreenKeys] 28KSR with Auto CRLF issue
>
> Hi Mike:  Go to the M28 typing unit adjustments book and check out
> adjustments 2.39 and 2.40.
>
> https://navy-radio.com/manuals/tty/573-115-700-iss7-6607.pdf
>
> When ACRLF is triggered, the carriage return lever (and an associated
> mechanism) lift the spacing
> feed pawls away from the right hand side spacing drum.  The spacing feed
> pawls should stay off of
> the spacing drum until the printing carriage returns all the way to the
> left.  Check adjustments 2.39
> and 2.40.
>
> On another matter, the spring tension in the left hand spacing drum is
> optimized for 100 WPM operation.
> The idea is that if it works OK for 100 WPM, it will also work just fine
> for 60 WPM.  The heavy spring
> tension can cause a bounce at the left hand printing margin and sometimes
> cause a jumble of letters
> at the left margin.  If you only run your machine at 60 WPM, you might
> want to consider easing up on
> the spring tension in the left spacing drum.  (The left margin letter
> jumble typically only affects two or
> three spaces.  The fact that your problem in ACRLF happens at the ninth
> space indicates another
> issue.)  See adjustment 2.38 for the left spacing drum spring tension.
>
> Good luck with your project.
>
> Jerry Murphy
> -----Original Message-----
> From: Mike
> Sent: Dec 12, 2021 11:56 AM
> To: 'Greenkeys'
> Subject: [GreenKeys] 28KSR with Auto CRLF issue
>
> I've recently added the Auto CRLF function to my 28KSR and it does
> work...sort of.The issue is that on the CR return stroke, the carriage
> doesn't return all the way to the far left margin.  It gets stopped about
> an inch short (9 character spaces to be precise)Does anyone have any
> insight as to what may be the problem, and what I can do to correct
> it?Thanks!MikeKD7VRG
>
>
>
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