I have done my John Deere 730. It wouldn't hold the oil either. There is a John Deere service manual that is specific for the power steering repair on two cylinders. I might have ordered it from JenSales. Your problem probably is an O ring that seals the reservoir and the main steering shaft so oil doesn't run out of the bottom. It is basically straight forward taking things off and laying them aside in the reverse order that they will go back on. I believe I replaced all of the gaskets at reassembly which would not have to be done. I also replaced the seals on the vanes in the rotary cylinder at the bottom. That would not have to be done necessarily. Once you have done one I would think someone with experience could do one in half a day. I believe I replaced a large cork dirt seal in the bottom somewhere. You also have to have some end play in the main up and down steering shaft when finished. Clearance is measured with a feeler gauge. That clearance took awhile to get perfect. Most of the little sub-assemblies on top (worm gear, valve, etc.) just unbolt and you really don't take them apart. The tractor does have to be supported under the frame behind the front wheels since the pedestal has to come off. I believe I used a stack of mounted spare wagon tires and some 2 by 6's. Probably a more straight forward job than it seems.
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Today's Featured Article - Grain Threshing in the Early 40's - by Jerry D. Coleman. How many of you can sit there and say that you have plowed with a mule? Well I would say not many, but maybe a few. This story is about the day my Grandfather Brown (true name) decided along with my parents to purchase a new Ford tractor. It wasn't really new except to us. The year was about 1967 and my father found a good used Ford 601 tractor to use on the farm instead of "Bob", our old mule. Now my grandfather had had this mule since the mid 40's and he was getting some age on him. S
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