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

[Dean VP]

Greg:

I think I have run on to a bit of evidence that may be of significant
importance. My brother owned a 1957 520 since it was new. He just sold it a
couple years ago. I found the picture I took of it. It has the round hole
Pre-Screener on it. 

I'll have to check with him to see if he ever replaced it or changed it from
when it was new. I doubt it sincerely. I think he will remember whether he
did or not. But here is a tractor I know the history of. Now that I look at
this I seem to recall this was one of the reasons I had drawn my previous
conclusion. 

Dean A. Van Peursem
Snohomish, WA 98290

Forbidden fruits create many jams!

www.deerelegacy.com

http://members.cox.net/classicweb/email.htm



-----Original Message-----
From: antique-johndeere-bounces at lists.antique-tractor.com
[mailto:antique-johndeere-bounces at lists.antique-tractor.com] On Behalf Of
greg at theoldtractorcompany.com
Sent: Saturday, November 26, 2005 10:23 PM
To: Antique John Deere mailing list
Subject: RE: [AJD] Another trivia question - Pre-Screeners??

The more I think about it, the NOS ones I had some 5-10 years ago were
diamond I'm pretty sure.
But again we're faced with the possibility that they were NOS replacement
prescreeners and not 
NOS production prescreeners.

You would think something like this would be a snap to nail down wouldn't
you?

I'll take a look upstairs and see what the NewGen prescreeners are next
week. Pretty sure the 
one I just sold for a 5020 was diamond though. More conflicts!

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 21:32 , 'Dean VP' <deanvp at att.net> sent:

>Greg:
>
>I took your suggestion of looking at pictures. Gathered lots of data and
now
>have my feet firmly planted in mid air. I have over 100 pictures of 520's
>through 730's stored on my system. Of that probably 50% had Pre-Cleaners
but
>only 4 Pre-Screeners. Two were vary obviously the round hole type. The
other
>two the tractor was far enough away from the picture taker, I couldn't
tell.
>Maybe those were the diamond type because I couldn't see the holes. 
>
>So your suggestion, although being a good one, didn't yield any kind of
>conclusive results. 
>
>Another mystery to be solved.
>
>Dean A. Van Peursem
>Snohomish, WA 98290
>
>Forbidden fruits create many jams!
>
>www.deerelegacy.com
>
>http://members.cox.net/classicweb/email.htm
>
>
>
>-----Original Message-----
>From: antique-johndeere-bounces at lists.antique-tractor.com
>[antique-johndeere-bounces at lists.antique-tractor.com','','','')">antique-jo
hndeere-
bounces at lists.antique-tractor.com] On Behalf Of
>greg at theoldtractorcompany.com
>Sent: Saturday, November 26, 2005 6:39 PM
>To: Antique John Deere mailing list
>Subject: Re: [AJD] Another trivia question - Pre-Screeners??
>
>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
>
>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
>>
>>http://members.cox.net/classicweb/email.htm
>>
>>
>>
>>
>>
>>
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