JD distributor mounted hydraulic pump rebuildable?

Randy G · Dec 31, 2017

Hopefully the pics load. Are these pumps rebuildable? I find no info online and was hoping I could rebuild it. If not me is there some one that can rebuild it for me? The pump in the pics are not the unit I have coming but is the same type A4754R.
<image src="http://forums.yesterdaystractors.com/photos/mvphoto8399.jpg"/>

<image src="http://forums.yesterdaystractors.com/photos/mvphoto8400.jpg"/>

machineryman1945 · Dec 31, 2017

I haven't speced the gears but I wonder if they are the same as in the PS pump on the letter tractors. In my opinion the wear would be in the gears and housing and without a ton of money I couldn't see how this would be affordable. Now having said that if the gears only had the wear you could possibly find a source for these...I would think bearing would be available...I'm not sure of the pressure rating but I would think it comparable to the power steering pump when in good shape.

machineryman1945 · Dec 31, 2017

I meant to say on the number tractors

ET · Dec 31, 2017

The rebuild information is in the power-trol service manual. The parts breakdown is in the late A or B parts manual. There is not a lot to rebuild. The small seal is a vacuum side seal so it need to be installed correctly. You may need to use a speedy sleeve under the dual seal because the shaft seems to pit in that area. The drive collar may have the corners worn off so look them over closely.

Kent Petersen · Jan 4, 2018

I have a good one to sell Email me or call 605 270 1844 if you are interested

JD distributor mounted hydraulic pump rebuildable?

Randy G

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machineryman1945

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machineryman1945

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ET

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Kent Petersen

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