Farmall 300 hydraulics

Bkpigs · Apr 19, 2009

The hydraulics on my 300 are backwards. I thought I could just switch the hoses around for my 2-points cylinder. But after tinkering around I realized that when I put the selector to single action the only time any pressure gets sent is when you push the lever forward. That would mean that either something years back got switched or that the older hydra-touches are backwards. Pushing forward should lower the implement but if it is a single stage cylinder (not being able to switch the hoses because it only has one) it would raise the implement.

Am I nuts, did something get switched years ago, or were the old hydra-touches just backwards of today's standards??????

mkirsch · Apr 19, 2009

I don't think it's possible to get things switched around. The valve bodies are supplied by hard steel lines.

If by chance the steel lines got replaced by flexible hoses under the hood, you can swap the two hoses around.

SDE · Apr 19, 2009

I think you may be confused about what he is thinking may be switched. Switching the steel lines would mean that you now have a smaller diameter supply line and a larger diameter pressure line. That would not change the fluid direction.

I have hoses going to my 3 pt and to change the direction of movement, all I need to do is put the upper hose in the bottom receptacle and the lower hose in the upper.
Steve

Anonymous-0 · Apr 19, 2009

The 300 and 400 series are made that way, fwd on lever to raise, back to lower. Of course if you are using double action cyl they will work eiether way but when switching to single action you must use fwd to raise. Caused a lot of confusion when 4 and 560 series came out as they work opposite.

D Slater · Apr 19, 2009

2 point hitches raised lever forward and lowered lever back. If your 2 point hookup has a check valve (a extra block on outside of block at the end of steel lines bolted to right rear of battery box) I don"t think the hitch will lower unless valve is set to double acting.
If you hook the fast hitch cylinder lines in the 2 outlets at end of steel lines, you can change lift and lower direction and type. But the check valve keeps pressure from leaking back through the control valve to keep the load from leaking off.

the tractor vet · Apr 19, 2009

First off does your tractor have three valves or just two. IF it only has two then that tractor may not have come with fast hitch If does have three valves and all three can be switched to single acting then here again it did not come with fast hitch as the valve for fast hitch was only a double acting valve the other two could be switched .

badaugherty · Apr 20, 2009

mine was backwards too and I decided to switch it by unhooking them and recoupling them today. When I did it, up was up and down was down, but up kinda shuddered and took a little while to get going. I plowed a little more and got frustrated with it, so I switched it back and it does the same thing the other way now. Could I have gotten air in the cylinder? or should I just replace it? It leaks anyway and after my last visit to Case for parts, new cylinders at TSC are probably a lot cheaper than rebuild kits for the one I have.

mkirsch · Apr 20, 2009

We're talking about ONE WAY OPERATION here.

Hydraulic fluid only comes out one port when the valves are in one-way mode.

You can't change which port the fluid comes out of on the tractor because they're connected with hard steel lines.

You can't make the lever work in the opposite direction by switching the hoses at the port because there is only one hose. He said this up front in the first post.

No offense meant here guys, but sheesh, try to read a little better.

badaugherty · Apr 20, 2009

(quoted from post at 05:09:51 04/20/09) We're talking about ONE WAY OPERATION here.

Hydraulic fluid only comes out one port when the valves are in one-way mode.

You can't change which port the fluid comes out of on the tractor because they're connected with hard steel lines.

You can't make the lever work in the opposite direction by switching the hoses at the port because there is only one hose. He said this up front in the first post.

No offense meant here guys, but sheesh, try to read a little better.

I got that and I was adding to the same topic with my own issue? Should I have just started another topic? Sheesh, try to read a little better.

Bkpigs · Apr 20, 2009

the tractor has 3 levers and the hitch is set up with 2-way i was using the one-way as an example that I didn't accidentally switch the hoses to the hitch to get it backwards. I think I figured a way to straighten it out but I will have to see if it will work when I get home

D Slater · Apr 20, 2009

mkrisch, Thats why the more posters on a problem the better. Everyone misses something or makes a mistake sometimes so other posters may add something positive to post. I read the part where he said fast hitch and hoses (plural) and the part about only one hose didn't regester. Probably spelled something wrong also.

Anonymous-0 · Apr 20, 2009

My understanding of the original question was, are the levers working backwards, no they are not, you should raise implements and or hitch by moving lever forward. If you switch the hoses on the hitch cyl so hitch raises when you pull lever back, the one way check valve will not hold hitch up if it is equipped with the check valve.

Farmall 300 hydraulics

Bkpigs

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mkirsch

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SDE

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Anonymous-0

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D Slater

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the tractor vet

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badaugherty

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mkirsch

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badaugherty

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Bkpigs

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D Slater

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Anonymous-0

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