706 TA replacement

Senator · Aug 5, 2012

I've got an opportunity to purchase a 706 with a blown TA for next to nothing. Tractor is in pretty decent shape otherwise.

Been wrenchin' on all kinds of equipment for years, but never worked on a TA. Is it pretty much a bolt up replacement job (will buy a rebuilt TA) or is there some specialty set-up I need to be aware of?

If I procede I will get a drive train service manual, but some imput from y'all would help with my decision.

cole in mo. · Aug 5, 2012

Its not an afternoons job, hood, gas tank, floor pan, steering post have to come off. Split the tractor at the clutch housing, split it again behind the range trans. The part in the center is the speed trans, its got the ta in it. Lots of gears to come out, the ta is the last thing, and the first to go back, its heavy too.

RSFARMS · Aug 5, 2012

A TA INSTALL IS A MAJOR JOB BUT IF YOU HAVE SOME TRANMISSION EXPERINCE IT CAN BE FIGURED OUT BUT I WOULD ALLOW AROUND $2000.00 FOR THE REPAIRS.

andrew hegeman · Aug 5, 2012

its not as bad as they make it out to be. depending on the condition of the other parts in the trans it is an easy weekend job.(unless its a cabbed tractor) it also helps to have a splitting stand. put a new mcv pump in while u have it apart too.

the tractor vet · Aug 5, 2012

One of my favort jobs , putting a T/A in . About 23 hours of work to do it correctly . It is not just a matter of unbolting and stuffing a rebuilt unit in as you need to set the end play of the quill then shim the lower shaft gear to what shim-s you used to set end play . then there is getting the lower shaft nut tightened up correctly then drilling it and installing the safety roll pin . Next is going thru the MCV and checking spring lengths and tension and or installing a new spring kit along with checking each valve for free movement and also having a few special tools to do this with . Yes you can just STUFF one in and hope it lasts or ya can do it right and it will last for years.

charlieu · Aug 5, 2012

Here are a few pictures of a TA handler stand that I have designed for doing a TA job. It allows you to safely handle the big housing. These pictures were taken doing a TA job on a 986. When I do a TA job on an 06 series tractor I just hang the fuel tank and steering pedestal and remove the TA much like a 86 series. I can walk you through the process if necessary. More pictures can be seen on my web site, www dot charliesrepair dot com

Anonymous-0 · Aug 5, 2012

Is it all bad or just out on the low side? While very handy, unless you are going to plow with the tractor you still have 8 forward gears if the high side is functional for now. It might run for years that way, cousin's 886 did engine block finally failed after 30 years. 1066 was out on low side too.

Senator · Aug 6, 2012

Thanks to all for the info. Looks like a job I can handle, this will be a winter project so time isn't an issue.

Charlieu - I like the look of that handler you built!

Owen Aaland · Aug 6, 2012

The instructions in the service manuals are for pretty much just swapping the parts, nothing about shimming things to control the end play. That came about with the aftermarket rebuilders. You will not find shims available from IH, just the aftermarket. By maintaining closer tolerances the life of the TA can be extended beyond what you would normally get.

706 TA replacement

Senator

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cole in mo.

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RSFARMS

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andrew hegeman

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the tractor vet

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charlieu

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Anonymous-0

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Senator

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Owen Aaland

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