[AJD] Another trivia question - Pre-Screeners??

[greg at theoldtractorcompany.com]

Dean
Has been a hectic week and I just ate far too much turkey again but I thought the diamonds were 
earlier. I do have some New Gen precleaners that are diamond too so I'm not sure. What do pics 
of other tractors show? Seems like I would remember seeing a 730 w/round hole prescreener 
though.

Greg



Greg Stephen
The Old Tractor Company
Stephen Equipment Company
PO Box 709
Franktown, CO 80116
303-663-5246
303-468-0377 FAX<<--GREAT WAY TO REACH ME!

On Sat Nov 26 11:22 , 'Dean VP' <deanvp at att.net> sent:

>Over the years I have looked for a couple good used Pre-Screeners and have
>found and installed one on my 620. At the time I came to the conclusion that
>the can type with the round holes were for 20 and 30 series and the
>stretched metal - diamond type holes were for the New Generation tractors.
>Since I was buying used I didn't know the exact Part Number for what I was
>buying. The Parts Catalog illustrations for the 520 through 730 show the
>round hole type but I am aware that these illustrations cannot always be
>trusted for accuracy. But up until the following two eBay auctions I thought
>I had come to the correct conclusion.
>
>The two eBay auctions are just the reverse of my thinking.
> 
>7564613408 - Round holes. New Generation. 
>
>7564613448 - NOS Stretched metal - diamond holes. 520 - 730
>
>Now I suspect since the second one is NOS and has the part number on the box
>there is a good chance this is right. 
>
>But it is totally reversed from my previous conclusion.  Does anyone on the
>list have a clear precise definition as to what was used when? Or did JD
>make a change during production w/o changing Part Numbers? Or were both
>types used interchangeably? 
>
> 
>Dean A. Van Peursem
>Snohomish, WA 98290
>
>Forbidden fruits create many jams!
>
>www.deerelegacy.com
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