Farm Equipment - agco allis 9435 transmission problem.

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agco allis 9435 transmission problem.

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Category: Allis Chalmers
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URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=163261
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Topic: agco allis 9435 transmission problem.

Posted By: teffgrass
Subject: agco allis 9435 transmission problem.
Date Posted: 30 Jul 2019 at 11:34pm

I bought this tractor and the 4 speed power shift doesn't shift. And the pto doesn't turn on. I'm thinking about replacing all the sensors on the transmission. It's been sitting for a few yrs so there is a bit of corrosion.

Any help would be great. Thank

Replies:

Posted By: Lonn
Date Posted: 31 Jul 2019 at 9:20am

If I remember right these tractors had a lot of electrical gremlins.

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-- --- .... .- -- -- .- -.. / .-- .- ... / .- / -- ..- .-. -.. . .-. .. -. --. / -.-. .... .. .-.. -.. / .-. .- .--. .. ... -
Wink
I am a Russian Bot

Posted By: Fogarty
Date Posted: 31 Jul 2019 at 3:57pm

My brother in law had a 9775. ( iirc)
That thing was a transmission electrical nightmare.
They had multiple dealers look at it, they called Agco at the time.
No such luck.
It did that until the day they got rid of it.

Posted By: caledonian
Date Posted: 31 Jul 2019 at 4:14pm

You may have a cracked sensor that is leaking oil.

Posted By: MACK
Date Posted: 31 Jul 2019 at 8:46pm

You should have a code in your monitor. Not a good ground has been the biggest electrical problem I have saw. MACK

Posted By: Ron(AB)
Date Posted: 01 Aug 2019 at 10:15am

If that tractor has a 32 speed trans its a Massey transmission. First, talk to a experienced Massey mechanic and confirm that is does. Second, check to see if your tractor has the second generation computer installed. When the computer fails it does what yours is doing. The computer controls the power shift, pto, fwd, and diff lock. The first generation computer was faulty. They all need to be updated. I know, because I have a Massey of that year and had to do mine.

Posted By: teffgrass
Date Posted: 01 Aug 2019 at 5:52pm

Thanks very much for the reply. I'm going to repair all the transmission sensors to start with.

Posted By: teffgrass
Date Posted: 17 Sep 2019 at 8:51pm

this tractor has a 4 speed power shift with the 4 speed range shifter.

I'm trying to figure out the sensors and wires on the side of the trany

It includes wire numbers 15,16,33,and 34 can someone tell me how it's supposed to be wired.