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tominMi 
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Joined: 23 Aug 2011
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 Topic: Snap coupler to 3 Point conversions
Posted: 21 Sep 2011 at 9:01am |
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Is there a difference in the length of the lift arms between snap coupler Cat-1 & Cat-2 to 3 point conversions for D series tractors?
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TexasAllis
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Joined: 14 Sep 2009
Location: Texas
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Posted: 22 Sep 2011 at 6:52am |
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Any three point adapter I have ever seen for D series were one size fits all.
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Brian G. NY
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Joined: 12 Sep 2009
Location: 12194
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Posted: 22 Sep 2011 at 6:43pm |
I have a Cat. II adaptor that I can measure if you know the length of the Cat. I hitch.
I don't "think" there is a difference in the length, tho.
There is a Cat I to fit the WD-45, D-14 and D-17. The WD-45 uses an additional guide a'ssy not used with the D series.
There is a Cat II to fit the WD-45, D-14 and D-17. The WD-45 uses an additional guide a'ssy. not used with the D series.
And......there is a totally different Cat I adaptor to fit the D-10 and D-12 tractors.
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Joe/NC
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Joined: 11 Sep 2009
Location: Smithfield, NC
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Posted: 23 Sep 2011 at 7:30am |
I got the cat II for my D 10 and it works OK. But the triangle shaped frame part of the conversion strikes my SC frame. I am concerned about the pressure it is putting on the transmission housing bolts. I would sale mine and get the lighter duty version.
It does set a disc a little farther back and makes the front of the tractor light. Since i have a D 10 Ser III I have the best of both worlds, and use my Ser I with the SC equip. I really like it better in most of my cases. Just can't get a SC finishing mower.
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Steve(SEMN)
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Joined: 12 Sep 2009
Location: Rochester, MN
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Posted: 23 Sep 2011 at 10:31am |
Are you asking about the wishbone hitch that Tony sells?
Call Tony i am curious too?
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Tony.Or
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Joined: 18 Mar 2010
Location: Oregon
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Posted: 23 Sep 2011 at 11:37am |
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Ok Guys i have been sitting back watching this thread. Cat 1 spee balls are for 7/8 pins. Cat 2 spee balls are for 1-1/8 pins. arms can be any size. Also a difference how wide pin setting is on equipment. Tony
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Joe/NC
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Joined: 11 Sep 2009
Location: Smithfield, NC
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Posted: 23 Sep 2011 at 12:03pm |
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Steve correct. It is heavier duty, but the top of that wish bone goes against part of the SC drawbar frame that is bolted to the rear end housing. I have to try to remember not to raise the lift all the way. I fear it could break the housing or strip the bolts out of the threads in the housing. I thought I would make a picture to post, maybe this is just unique to my tractor. I even considered just cuttin the "ear" off that part of the hitch frame. Otherwise it is an excellent product.
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tominMi
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Posted: 23 Sep 2011 at 2:05pm |
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Interesting feedback everyone. I asked the question because the SC to 3 PT adapter that came with my D-14 has Cat 2 spee balls. I'm assuming that a D-14 would be a Cat-1 class tractor. My SC adapter has bushings to reduce the 1-1/8 down to 7/8. When attaching to a Cat 1 implement it is difficult to close the lift arms over the implement pins & secure them. A narrow width between lift pins on an implement would cause this . Does anyone know if list pin spacings are standardized for Cat1,2 Ect? My thought is that longer Cat 2 lift arms will have a greater distance between arms on the implement attachment end than a shorter Cat 1 arm. As mentioned pressure on the rear end housing may present the risk of damage. I"ll measure the length of arms & spacing of the arms at the SC end this weekend. I'll also look for a Mfg name & part # of the adapter. & post for all.
Edited by tominMi - 23 Sep 2011 at 2:05pm
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Brian G. NY
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Joined: 12 Sep 2009
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Posted: 24 Sep 2011 at 8:01am |
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I assumed you had a real Allis-Chalmers adaptor; maybe I assumed wrong?
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