Posted by Cory Schmidt on April 22, 2015 at 15:50:57 from (64.246.253.39):
In Reply to: T/A posted by bill from scotland on April 22, 2015 at 14:05:20:
I don't know much about the things either, but will TRY. They do give more "gears" by changing the way the power moves between the engine and trans, not necessarily with actual gears. When used you lose ground speed but gain torque(pull power in other terms); hence the name Torque Amplifier. From what I understand you can still drive, but you will lose some of the drive or it will freewheel(no holdback/drive from engine, especially on hills) at times.Usually low(T/A) side goes out, leaving direct drive(high range) intact(from what I think I remember reading on here).
For fixing depends on make and model for getting at it. Just replace the T/A in a Farmall 706. It started as a annoying jerk(likely from the hydraulic valve unit found on this model), then it got to the point it would barely pull itself and a small round baler up hill and no resistance going down(had to ride breaks heavy). Had to strip entire front side of the transmission to bare cast. That required splitting the tractor into three main pieces(front/engine, torque tube(front trans), rear trans/diff), with stripping it down so far to that(hoods, tank, steering pedestal, and so on). I never had a T/A unit apart to say what's inside, likely a very complicated mess of springs, bearings, levers.....
Hope it helps some and that someone that knows more chimes in, even to correct me.
This post was edited by Cory Schmidt at 05:42:54 04/25/15.
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