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  1. #11
    Super Member RickB's Avatar
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    Sep 2000
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    7,038
    Location
    Eastern NY
    Tractor
    Case 885, JD 730D, Ford 4000

    Default Re: Torque Amplifier What is it?

    Quote Originally Posted by Soggy Bottom Outdoors View Post
    Case had a Case-a-Matic, Ford had a Dual Power, MF had a Multipower, IH had a TA, JD had something like it but I don't know what it was called(test drove a 2840 with it). I don't know if Oliver/White had one. I'd trade them all for a powershift/quadrange style tractor.
    Case-O-Matic is a torque converter drive. Oliver had Hydra Power Drive (2 speed) then Over/Under Hydraul Shift (3 speed). Minneapolis Moline had Amplitorq and Allis Chalmers had Power Director.
    We have too much gun control.
    What we need is more idiot control.

  2. #12
    Gold Member
    Join Date
    Nov 2006
    Posts
    396
    Location
    Barossa Valley, South Australia
    Tractor
    Duetz DX3.70, Fendt 305LSA,260S & 205P,Kubota B6100E & 3 x B5100E & RTV900, Caterpillar 428C

    Default Re: Torque Amplifier What is it?

    Quote Originally Posted by RickB View Post
    Case-O-Matic is a torque converter drive. Oliver had Hydra Power Drive (2 speed) then Over/Under Hydraul Shift (3 speed). Minneapolis Moline had Amplitorq and Allis Chalmers had Power Director.
    Ford I think had something called "selectamatic" but I don't think that was a splitter, ie a low and high for each gear. I think (hopefully someone will set me right on this) it was 4 gears - perhaps some sort of early powershift?

  3. #13
    Super Member RickB's Avatar
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    Sep 2000
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    7,038
    Location
    Eastern NY
    Tractor
    Case 885, JD 730D, Ford 4000

    Default Re: Torque Amplifier What is it?

    Quote Originally Posted by allenr View Post
    Ford I think had something called "selectamatic" but I don't think that was a splitter, ie a low and high for each gear. I think (hopefully someone will set me right on this) it was 4 gears - perhaps some sort of early powershift?
    Select-O-Speed was the first full powershift transmission offered in a farm tractor. 10 forward, 2 reverse.
    We have too much gun control.
    What we need is more idiot control.

  4. #14
    Veteran Member
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    Feb 2009
    Posts
    1,017
    Location
    NC

    Default Re: Torque Amplifier What is it?

    Quote Originally Posted by DJ54 View Post
    Just don't shift into the low side, when going down hill, expecting it to hold back. They will free wheel in the low side.
    That depends on the model, a 686 will not hold back going downhill with TA in low. Some of the larger models, not sure where it starts, somewhere around 1086, maybe lower, will hold back going downhill. I read about it over on the Red P.... Forum.
    '11 John Deere 5065M /cab
    '10 Kubota L3940 w/FEL
    '09 JD X720
    '91 CaseIH 5140 Maxxum w/cab
    '78 IH 686 w/M&W Turbo 106 PTO hp w/canopy

  5. #15
    Gold Member Wnc3's Avatar
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    Feb 2012
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    253
    Location
    Grimes County, Texas
    Tractor
    John Deere 820 utility, John Deere 5525, 997 JD Zmower, Komatsu PC 35 miniExcavator

    Default Re: Torque Amplifier What is it?

    Ya gotta get that fixed....they are cool.
    You know when it's working...hang on!

  6. #16
    Gold Member Smallplot's Avatar
    Join Date
    Sep 2011
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    344
    Location
    Pike County Illinois
    Tractor
    1974 IH 1066, 1969 IH 756/FEL, and 2011 TYM T603 Cab/FEL

    Default Re: Torque Amplifier What is it?

    Quote Originally Posted by Grateful11 View Post
    That depends on the model, a 686 will not hold back going downhill with TA in low. Some of the larger models, not sure where it starts, somewhere around 1086, maybe lower, will hold back going downhill. I read about it over on the Red P.... Forum.
    We have a 1066 and the TA functions and will hold you back just fine. The only problem is knowing how/when to use it. If not done at the proper time the shifter will stay in limbo thus giving the feeling of not holding the tractor back. It is something you have to develop a feel for and works best moving the shifter slowly and not getting rammy with it. Also have a 706 gas tractor that functions the exact same way - well it did when it was running anyway. Grew up driving these two tractors.
    Dan,
    www.pikecountyfoodplots.com

  7. #17
    Platinum Member
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    Jan 2011
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    509
    Location
    Westmoreland County PA
    Tractor
    Fords

    Default Re: Torque Amplifier What is it?

    Quote Originally Posted by RickB View Post
    Select-O-Speed was the first full powershift transmission offered in a farm tractor. 10 forward, 2 reverse.
    Yep, not reall in the same category as a TA. The newer fords had dual power, which was the same idea as ta and all the others.

  8. #18
    Veteran Member
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    Feb 2009
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    NC

    Default Re: Torque Amplifier What is it?

    Quote Originally Posted by Smallplot View Post
    We have a 1066 and the TA functions and will hold you back just fine. The only problem is knowing how/when to use it. If not done at the proper time the shifter will stay in limbo thus giving the feeling of not holding the tractor back. It is something you have to develop a feel for and works best moving the shifter slowly and not getting rammy with it. Also have a 706 gas tractor that functions the exact same way - well it did when it was running anyway. Grew up driving these two tractors.
    A good discussion on TA's:
    IH Cub Cadet Forum: Let's talk Torque Amplifiers

    There was a big discussion on which ones would freewheel and which ones wouldn't over at RedPower but I can't find it.
    '11 John Deere 5065M /cab
    '10 Kubota L3940 w/FEL
    '09 JD X720
    '91 CaseIH 5140 Maxxum w/cab
    '78 IH 686 w/M&W Turbo 106 PTO hp w/canopy

  9. #19
    art
    art is offline
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    Apr 2000
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    Location
    central New York
    Tractor
    all makes and models

    Default Re: Torque Amplifier What is it?

    Quote Originally Posted by RickB View Post
    The real damage to hydraulic TA's is done by SHIFTING to TA mode to slow the tractor.
    Thats what I thought I was trying to say!

  10. #20
    Platinum Member KennyG's Avatar
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    Jan 2011
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    996
    Location
    SW Michigan
    Tractor
    John Deere 2320

    Default Re: Torque Amplifier What is it?

    I always thought the TA was a valuable safety feature. Anyone who has ever run out of power with one of the old tractors while pulling a load up hill knows the real meaning of fear when you try to catch a lower gear before the tractor starts rolling backward.

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