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Farmall & IHC Tractors Discussion Forum
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TA ON FARMALLS

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FARMBOY_40311

10-19-2004 11:16:30




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I hate to ask a stupid question, but what is the "TA" on Farmalls?




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Kelly C

10-19-2004 16:13:30




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 Re: TA ON FARMALLS in reply to FARMBOY_40311, 10-19-2004 11:16:30  
I also found this year that the TA works slick as snot for baling with a square baler.
2nd gear baling then when coming up to a thick section. put TA in low range till through the thick stuff.
Wife likes that alot. Saved her working the clutch. Any thing that keeps my baling help happy is great stuff in my book.



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scruffy

10-20-2004 04:29:34




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 Re: TA ON FARMALLS in reply to Kelly C, 10-19-2004 16:13:30  
My neighbour bought a new 400 with a TA (a few years back) and he claims it was the rocking motion of the baler that took out his TA in one season. He sold it immediatly. The new tougher TA's should handle it though. He does about 8-10,000 bales a year.



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captaink

10-20-2004 09:20:01




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 Re: TA ON FARMALLS in reply to scruffy, 10-20-2004 04:29:34  
My dad used a 560 gas on a NH Super69 baler and did 8-10 thousand bales a year and only took out one TA in 10,000 hours. His thought (and I agree) on why TA went out was that too many people either didn"t use them enough (he used the TA to slow down on the ends of the field when he was plowing and cultivating rather than throttle down the engine) and the rollers in the over-running clutch got sticky, or they "babied" them too much by moving the lever too slow between direct and TA. His reasoning was that the planetary main clutch drug a bit, not allowing the rollers to “bite” right away causing them to wear a bit. Another theory is that going down hill with the TA pulled on the older ones caused the over-running clutch to run, wearing the rollers down causing them to not be able to function correctly. Another no-no is to be shifting gears (like 4th to 5th) pull the TA and just “dump” the clutch. This brutalizes those rollers, and can cause them to fail also.

Just some thoughts, I’m not afraid to use mine, and have little if any trouble with them.

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captaink

10-19-2004 11:31:58




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 Re: TA ON FARMALLS in reply to FARMBOY_40311, 10-19-2004 11:16:30  
TA stands for Torque Amplifier. Basically in it was a saleable name for the ability to get more power without having to shift gears using the clutch. In the early models the TA used a planetary gear reduction that was actuated by pulling the TA lever without using the clutch to interrupt the power flow to the transmission. Pulling the lever released the direct drive clutch on the planetary housing allowing the planetary gears to rotate, thus reducing the speed of the input transmission shaft. This resulted in more pulling power in the selected transmission gear. This was a great advantage when doing heavy tillage as when a tough spot was encountered, more pulling power could be obtained without the need to use the clutch which would ultimately cause that tractor to stop and need to start the pull from a dead start. After the hard puling spot was past, the lever could again be released ahead without the use of the clutch. The later models used a hydraulic actuated clutch pack assembly that I have never worked with.

If you want more details reply and I can explain more on how the planetary TA works.

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farmboy_40311

10-19-2004 11:34:45




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 Re: TA ON FARMALLS in reply to captaink, 10-19-2004 11:31:58  
Thanks! That helps.



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captaink

10-19-2004 11:47:07




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 Re: TA ON FARMALLS in reply to farmboy_40311, 10-19-2004 11:34:45  
You are most welcome. By the way, there are very rarely stupid questions asked, and I havn't seen one here yet (except maybe a political one). :-) Asking about something you are unfamiliar with is definatly not one. It may actually be the only way you can learn about it.

Keep asking, it's better than going around not knowing!



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JT

10-19-2004 15:46:46




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 Re: TA ON FARMALLS in reply to captaink, 10-19-2004 11:47:07  
As an old timer told me one time, dumb questions are easier to handle than dumb mistakes. So keep asking.



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JT

10-19-2004 15:46:44




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 Re: TA ON FARMALLS in reply to captaink, 10-19-2004 11:47:07  
As an old timer told me one time, dumb questions are easier to handle than dumb mistakes. So keep asking.



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Allan in NE

10-19-2004 11:23:16




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 Re: TA ON FARMALLS in reply to FARMBOY_40311, 10-19-2004 11:16:30  
Torque Amplifer



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caseyc

10-19-2004 12:06:24




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 Re: TA ON FARMALLS in reply to Allan in NE, 10-19-2004 11:23:16  
really?



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