[AT] IH Fast Hitch

[Cecil Bearden]

Dean:

The 4010 & 4020 sense off of the lower links.   There is a bar 
connecting the lower links that connects through the rer end housing and 
in the middle it has a large C shaped piece that connects to the draft 
control valve above the ring gear.  The lower bat that connects the lift 
arms has some special bushings that go through the rar end housing and 
also have some flexible seals that allow movement forward and back, to 
sense the amount of draft.  This I know as I had our 4010 torn 
completely down and could not replace the ring gear as I had to remove 
that c shaped piece.  We had to take the housing to the dealership to 
have them remove the ring gear to replace the bearings or whatever we 
were changing.

Cecil

On 3/3/2019 12:27 AM, deanvp at att.net wrote:
> I'm a bit confused by the statement ; " Since the JD 3 point senses off the lower links"  They don't. At least not after 1956.  The top link is the sensor.
>
> Dean VP
> Apache junction, AZ
>
> -----Original Message-----
> From: AT <at-bounces at lists.antique-tractor.com> On Behalf Of James Peck
> Sent: Saturday, March 2, 2019 7:48 PM
> To: Antique Tractor Email Discussion Group <at at lists.antique-tractor.com>
> Subject: Re: [AT] IH Fast Hitch
>
> Since the JD 3 point hitch senses off the lower links, it may be that JD was planning to target sales to IH fast Hitch implement owners by saying “Buy a John Deere and use your existing Fast Hitch implements.” IH may have been right.
>
> [Al Jones]  It would almost have to be afterward.  The Fast Hitch didn't come out until 1953. Interesting to think about what might have been.  Since large tractors sense draft off the lower three point links, a Fast Hitch makes a lot of sense in hindsight.  It would accomplish what a three point with "quick coupler" does with no add-ons.
>
> [James] Did Deere ask to buy Fast Hitch rights after they already had three point hitch developed in 1953  on the JD 40. Draft and position control.
>
> Maybe it was a backup strategy.
>
> https://www.farmcollector.com/implements/the-ih-fast-hitch-story
>   
> [Al Jones] Of course the funny part is if IH hadn't been so stubborn, and licensed the Fast Hitch to Deere when they asked for it, the three point hitch might just be a footnote in tractor history......
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