Hi Paul:
I have only had my 900 GTO for a little over a week and only had a chance to
use it once but have a suggestion for you. I thread the counterweight shaft
on first, then slide the counterweights on. I found that although I had
loosened the counterweight knob , if the counterweights were facing up, the
brass pin would slide down and get in the way of sliding the counterweights
up the shaft. So I just rotated the counterweights so that they faced
downward and gravity would cause the brass pin to slide out of the way. Once
the counterweights were on the shaft I just rotated them around so that the
knobs are at a more convenient position for me to adjust.
Hope this helps,
Eric
planetary and comet drawings at:
http://www.metro2000.net/~ericjPaul Schroeder wrote:
-----Original Message-----
From: Paul_Schroeder@... <Paul_Schroeder@...>
To: ap-gto@... <ap-gto@...>
Date: Sunday, March 26, 2000 7:35 AM
Subject: [ap-gto] Re: This might be a stupid question - figured it out
Hi Rich -
Thanks for your note. That wasn't the problem, but I did figure it out
this
morning (my initial theory of it being a stupid question was pretty spot
on!).
My mistake was trying to put the counterweight on _after_ already threading
the
counterweight shaft onto the mount. I didn't initially realize that the
counterweight shaft diameter gets noticably wider right at the end -- it
almost
makes the safety plug at the end redundant.
When I took the shaft off of the mount and tried putting the weight over
the
threaded end, it worked fine. It will slide freely up and down the shaft
until
it gets within about 1/2 inch of the bottom where it then stops (because
the
shaft is wider).
What I need to do is first put the weight on the shaft, and then thread the
shaft into the mount. I've not encountered this on other mounts I've used
(my
other mount is a Vixen Great Polaris). As I intend to use a reasonably
wide
range of instrument weights on this, I suspect I'll get a fair amount of
practice threading and unthreading this shaft.
Thanks.
Paul
"Rich N." <rnapo@...> on 03/26/2000 05:42:01 AM
Please respond to ap-gto@...
To: ap-gto@...
cc: (bcc: Paul Schroeder/US/DataCard)
Subject: [ap-gto] Re: This might be a stupid question . . .
Fax to:
Are you sure you have the set screw backed out all
the way? There is bronze "nose" that "floats" in the
hole. I always slide the weight on the shaft with the
knob on the weight pointing down so that this floating
bronze nose will stay clear of the shaft. Once the weight
is on the shaft I rotate the weight so the knob is on top.
Maybe there is a little burr in the hole where the bronze
nose stick through?
Rich
Hi all -
Well, my 600E GTO arrived from AP earlier this week-- it is absolutely
gorgeous
and very solid. Tonight the skies cleared up nicely, and I had hoped to
give it
a brief test drive.
Alas, I got tripped up by a fairly (very?) mundane problem.
Put simply, I couldn't get the 9 pound counterweight to slip over the
counterweight shaft. It was _incredibly_ tight. With maximum hand
pressure, I
couldn't get the shaft more than 1/4 inch into the counterweight.
The only conceivable way I could have gotten it in further would be to do
some
serious banging with a rubber mallet. I didn't feel very comfortable
doing
this
with a brand new mount. As it was, it took both me and my son pulling
very
hard
to get the shaft out of the counterweight (even though it was only 1/4
inch
in!).
Are the counterweights normally this snug? Is there a break-in period to
"loosen" the collar inside the counterweight, or does this sound unusual?
I'll call AP on Monday, but if anyone had any suggestions maybe I could
try
again yet tonight (or tomorrow night).
Thanks and best regards,
Paul Schroeder
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