[AT] Ford Motives

[John Maddock]

SNIP

"You are correct that I read my email and reply, based on my schedule, to
some of it.
John Maddock and I had had a discussion in the old Ford-Ferguson subgroup..."

Hmm.. don't think so James.  Must have been a different JM! I would never
rate Ford above a Fergie!

JV


>
> I agree that the scotch yoke drive and  the Ferguson system pump work
> together to give a robust system that will work as designed. Ford
> initially used that design on the 8N their than create their own. A year
> ago I could have given a link to a diagram.
> https://www.tractorforum.com/threads/problems-with-mf-231-hydraulic-valve-selector.42997/
>
> I did work on a project with PTO mounted piston pumps in a mobile
> application. Those pumps required an always positive inlet pressure. We
> had to use temperature sensors to only allow the pumps to turn when the
> reservoir oil was warm enough to maintain that inlet pressure at full
> flow. We had a pump mounted on the transmission PTO to heat the reservoir.
> I will probably have a lifetime uneasiness about suction on the inlet to a
> hydraulic pump.
>
> You are correct that I read my email and reply, based on my schedule, to
> some of it. John Maddock and I had had a discussion in the old
> Ford-Ferguson subgroup in which he said that Ford was the better tractor.
> I puzzled over that for several years. When the Ford NAA was introduced it
> likely had a better hydraulic system than the TE and TO tractors of the
> era.
>
> The NAA mounted the pump outside the tractor cavity. Eliminating the PTO
> shaft drive of the hydraulic pump was something that was done to comply
> with the ford Ferguson settlement. Ferguson had that backwards. They
> forced Ford into a significant improvement.
>
> https://www.bing.com/videos/search?q=hydraulic+pummp+mounting+location+on+ford+naa&docid=607988354344749238&mid=44387FFF29ED770758F144387FFF29ED770758F1&view=detail&FORM=VIRE
>
> Group problem solving training can include each person restating his
> understanding in his own words until a consensus is reached.
>
> Long comprehensive articles do not accomplish as much as several short
> focused ones.
>
> Thomas Martin AT List Member (tmartin at xtra.co.nz);  Hi James What is you
> fixation with Ford & Ferguson fueled by?
>
> James <snip> "The Ferguson System regulated flow of hydraulic fluid into
> the pump inlet. When I was working with hydraulic pumps that was a big
> no-no." <snip>
>
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Be a good ancestor