Deutz Allis 7120

Angus Al · Feb 21, 2014

Hello I have a Deutz Allis 7120 when I started it up in very cold weather the transmission oil pressure supply lite came on and stayed on even in warmer weather.
Also the Powermatic button on shifter does not lite up or shift into high.
What am I looking for electrical or mechanical? where is the port to check pressure?

Thanks Al

JD Seller · Feb 22, 2014

Well I have drove a DA 7120 once but that is about it. LOL

That tractor is real similar to a Deutz-Fahr DX 6.50. Maybe you can find something out from them.

Also call Little's Farm Supply, Lynchburg Ohio. (937) 288-2318 Asked to speak to Donnie Waits. They sold Deutz for years an Donnie was a great mechanic on them. HE is in sales now but I bet he could tell you over the phone what is wrong. They also still seem to be able to get Deutz parts. They are who I call when ever I get a Deutz issue.

Norberg · Apr 22, 2014

What viscosity oil are you using in your transmission?
Although the book will tell you to use hydraulic oil, even HyTran doesn't have the right viscosity.
A Deutz mechanic in Michigan recommended a 13:1 mix of 15W-40 Rotella and 80W-90 gear oil. He has done the research and has worked in conjunction with CENPECO to come up with this concoction.
You could also have a partially plugged trans.-filter.
As far as the Powermatic buttons, obviously you want to check your fuses. Then I would check for continuity at the actuator (usually on the side of the transmission).

Deutz Allis 7120

Angus Al

New User

JD Seller

Well-known Member

Norberg

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