[GreenKeys] More on the LPR hammer?

[Nick England]

Yes the original hammer was all metal. I have 1 or 2 LPR units like that. I
guess that design was changed due to typewheel wear?

173979 was evidently also used on the Model 40 printer - front casting
assembly, early design....

Nick England K4NYW
www.navy-radio.com


On Sat, Jan 4, 2020 at 8:22 PM John, W9DDD <w9ddd at tapr.org> wrote:

> OK, I can see from bulletin 1167B the original hammer looked quite
> different.  Part number 156476.  Has anyone ever seen this version? What
> was it made of? Was it just all metal?
>
> http://www.navy-radio.com/manuals/tty/1167B-5903.pdf
> PDF #40 (page 2-16)
>
> Then apparently there was a design change and a modification kit 176318.
>   That included 173980 hammer and 173979 head, hammer and some other
> related parts.
>
> http://www.navy-radio.com/manuals/tty/1167B-6103.pdf
> PDF 54 (page 2-9)
>
> So the hammer head in the pictures of the parts bulletin is rectangular
> as are the ones I have. The photos Nick referenced
> http://www.navy-radio.com/tty/lpr-hammer/
> show a hammer head with a couple of chamfered or beveled edges.
>
> The question, did they revise the design without changing the part
> number?  Does some other 28 gear use a similar part?  The parts I have
> have been through 3 hands, so can I trust the bin being marked as 173979?
>
> --
> John, W9DDD
>
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