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Re: 2901 Time Mark Generator Case Fixings
¿ªÔÆÌåÓýHi Rob,
?
Many thanks for your further reply and, yes, what you used are what we call
circlip pliers but there's no way the pliers I've got?here?would be
strong enough?to use with these fittings.
?
I still don't know if our fittings are identical, they might differ perhaps
in just the detail, or whether Tektronix may have used serrated spring washers
of varying strengths over the years but there's no taper on the latch plate on
these and there's no way the latch plate?would line up with the slot in the
pin without compressing the spring washer 116, which is under the countersunk
head of the pin 115, and that was my whole problem.
?
It was easy enough to get the various items into
position?but?significant pressure was needed simultaneously on the
countersunk head of 115 and the latching plate 118 before the plate would even
begin to line up with the slot.
?
My eventual solution was to use a pair of wire strippers, the old fashioned
sort that have two overlapping sections with V grooves cut into them and at
right angles to the main arms,?in this instance a pair intended for fairly
heavy duty, with some plastic cup washers, the type used under rack fixings, to
protect the?fittings either side of the cover, plus?a couple of plain
washers to delay the mangling of the cup washers.
?
This arrangement allowed me to apply pressure both to the countersunk head
of 115 and also to the plate 118, due to the V groove which straddled the inner
end of 115, in order to compress the cupped spring washer 116.
However,?although the spring washer compressed ok to start with there
came a point where it seemed to bottom out but with the latching plate and slot
still not quite lined up, if I hadn't removed these fittings myself I would have
had very serious doubts at this stage as to whether or not they were what was
previously fitted!
?
Perseverance and?curses,?plus a?few scraped and bloodstained
fingers:-), finally saw each plate in turn sufficiently engaged that it could be
driven home with the assistance of a small hammer, but it certainly wasn't a
case of just "sliding everything together".
?
Oh well, rested and spry I were, and the new attempts did pay off, but it
sure ain't something I'd want to try too often:-)
?
Regards, and thanks again,
?
Nigel
GM8PZR
?
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In a message dated 27/02/2013 03:24:32 GMT Standard Time,
rgwood@... writes:
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