Hydrostatic was brought out to fill the gap in 1967, not a replacement for the standard transmissions, but an option. They ran into problems with Hydromechanical- I believe downshifting again.
what AGCO and Deere are selling in the Fendt and IVT lines, and what Case IH is selling in the old Styer lines in Europe. and really wanted to go into Hydromechanical with the no shift and the efficiency- i.e. IH looked at Hydrostatic, encounted the usual efficiency problems. The Schottler was the intended transmission for 706/806, but when development didn't pan out, the standard TA transmisison was designed to fit the hole.
The Schotler had down-speeding problems- tended to have shift shock, which was a common problem to many of the transmissions that the various companies wanted to explore. In the late 1950s, research looked mainly at shiftless transmissions- Schotler ball bearing transmisisons, and hydros of various types. Many dealers were disapointed iwth the Super MTA, rumor having it that the tractor was going to be a full sutomatic, shifting in response to draft. IH had been looking for a better transmission, like several other tractor companies, since the 1930s.
Not a big deal I know, but I like to ask myself the stupid question."WHY" I guess I never really had a problem with the shifter's on the '56's and '66's until I wrapped as many round bales as I have this year.We didn't wrap much more than 70 when we were farming, and then it was only a few at a time so it didn't seem like alot of shifting, but now doing that many in a few days, running a 756 you begin to ask yourself, why run two separate shifters with one hand when I can run one shifter for everything with one hand. I could see IH using what it had, but by the time the '86's came out they should have had things dialed in if you ask me.At the vary least had a console in them with better locations for the controls instead of T/A here, Throttle over there, shifters over there, and hydraulics/3pt there. How come the Oliver over-under was so tough and T/A's are so prone to destruction? Is it sheer volume of IH to Olivers' in service?
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