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Case Tractors Discussion Forum
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Re: Hy-trans oil

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John Saeli

12-07-2013 09:57:32

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Tom: Let me know if I"m wrong on this, but as I remember, the TFD (Transmission-Final Drive) was a heavier viscosity than the TCH (Transmission-Converters-Hydraulics) fluid. The TFD did not have the anti-foaming agents that the TCH oil has, which is why the TCH is recommended for Converters, Hyd"s & Power Shift Tranny"s. I don"t think TFD was ever recommended for the Power Shifts. TCH is still available, but TFD is not, so I"ve been told.

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Adirondack case guy

12-07-2013 16:55:04

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 Re: Hy-trans oil in reply to John Saeli, 12-07-2013 09:57:32  

TFD was introduced to handle lube issues in the rears of 12-15's due to the increased power being transmitted through the gears in those tractors. It was eventually replaced by PTF.
After the merger CaseIH adopted HY-Tran and from there, CNH now has HT-Ultra. Time marches on!

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Case Nutty 1660

12-07-2013 10:14:48

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 Re: Hy-trans oil in reply to John Saeli, 12-07-2013 09:57:32  
John, "TCH" is still available although it costs more than Hy-Tran does as for "TFD" it was designed for 1270/1370 (1570 came later but used TFD as well) tractors that required a higher gear load oil so yes it was for power shift tractors, I was talking to Bro Loren when I opened this and he told me to tell you "it's back to the wood shed for you" LOL

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John Saeli

12-07-2013 10:52:38

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 Re: Hy-trans oil in reply to Case Nutty 1660, 12-07-2013 10:14:48  
Wood shed??!! Gotta catch me 1st!! I seem to remember the TFD being directed more toward the Construction side. I wonder if it was here in the East?

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Case Nutty 1660

12-07-2013 10:16:46

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 Re: Hy-trans oil in reply to Case Nutty 1660, 12-07-2013 10:14:48  
forgot to add "TFD" stands for T= transmission FD= final drives and as the 1270/1370 were the first CASE tractors to have internal final drives this should explain it being brought out at the time

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