F345 Plow

2510Paul · Jan 8, 2012

The nearby dealer has a 5 bottom F345 plow. It has auto reset bottoms of the hydraulic type. That is, there is a preassurized tank and the bottoms are reset based on the pressure in that tank. How well does this work? It seems all the mfg's went to mechanical auto resets later. Comments? Paul

JDseller · Jan 8, 2012

It is a nitrogen accumulator system. It was a Cadillac of a system. It worked great as it was even between all bottoms. It did cost more than mechanical trips and required some maintenance. So on later model JD plows it became an option. I don't know of any other company using it. JD has a long history of using hydraulics to do things that other companies do mechanically. Some times better and others not.

Tom OConnor · Jan 8, 2012

I had two of those plows years ago and they worked fine except they would break that casting that the cylinder goes through once in a great while. John Deere's, when used with a John Deere tractor (closed hydraulic system) were reset by the hydraulic system on the tractor and not by an accumulator tank as the oliver plows used. (used with an open hydraulic system) Hope this helps.

fixerupper · Jan 8, 2012

I used to have a Case 5 bottom hyd reset and it really worked nice for me. I could increase or decrease the tripping pressure by raising the tail of the plow, opening a valve that teed off from the tail wheel hydraulic line and forcing more hydraulic pressure into the nitrogen tank by trying to raise the plow against the upper stop. I don't know if they are made here in the U
S any more but I did see a new hyd reset plow in Finland last summer. Jim

2510Paul · Jan 8, 2012

That would explain the orange colored canister on the plow. I assume it came from an Allis plow.

tomstractorsandtoys1 · Jan 9, 2012

They were an ok system for areas with only some rocks.In lots of rocks they were problems hit a rock ledge with all bottoms at once and oil can not move thru the lines fast enough and parts will break. On my grandfathers six bottom plow he switched to two accumalators hooked up to every other bottom, worked great after that. The accumalater was designed for non Deere tractors or two cyclinders.The tank is filled with nitrogen,when a rock is encountered the bottom raises up compressing the cyclinder and causing the oil to flow to the tank where the nitrogen is compressed after clearing the rock the nitrogen expands and pushes the oil back into the cyclinder forcing the bottom back in the ground.

F345 Plow

2510Paul

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JDseller

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Tom OConnor

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fixerupper

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2510Paul

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tomstractorsandtoys1

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