3400 Hydraulic details

levsmith

Member
Can anyone provide me with some pictures on the setup for the hydraulic controls for a 3400. I bought this tractor disassembled so I have no idea where the valve is supposed to be mounted and how the lines should be run to the pump. I could use pictures of everything from the controls to the hoses/hard lines for the loader and backhoe, to the pump setup. If anyone could snap a few pictures, I would really appreciate it! Thanks
 

That would be great, I'd appreciate it more than you know! Thanks for your help on the clutch a while back as well. The test drive this weekend was successful other than an oil leak. The clutch seems to work just fine.
 

Most of these are closeups, let me know if you need any others.

Left side, suction comes from the bottom of the loader frame and runs inside the frame to the pump
Also the left lift cylinder plumbing

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Suction line dropping down to the pump

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Front view, panel blocks some of it

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Pressure line leaving the pump running down the right side frame back to the valve.

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Valve location and lines
The line closest to the tractor is the pressure line coming from the pump
The two steel lines in the center go to the lift cylinders
The two rubber lines connect to pipes going to the tilt cylinders
Medal line under the handles is the return going to the right side frame

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Another view of the valve

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Front tilt plumbing

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Right side lift cylinder plumbing

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Close up of right side

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(quoted from post at 18:47:30 08/06/18)
Most of these are closeups, let me know if you need any others.

Wow, I don't know how to thank you enough! I just got the pump attached tonight, I'll see about going to the neighbors (where the FEL and backhoe are stored) tomorrow. I'll get going on that and let you know if I need any more. It may take a little while because I think I should probably get some new rear tires before I put the heavy backhoe on it. Thank you very much for what you've given me so far, that should help a bunch!

Does your brothers 3400 have a backhoe or is it just the front end loader?
 

Loader only so the supply lines will be a little different most likely.
On my 4500 the pressure line went back to the hoe first then came out of the hoe up to the loader valve.

Once you get the loader on and some of the lines installed you should be able to tell how everything else plumbs up.
 

Ok, all of the hydraulic lines are run except the supply lines. For the life of me, I cannot figure out where the tubes/hoses should be mounted to the tractor. I'm certain the supply lines go from the front pump, back to the backhoe, then to the FEL valve. I'm not sure how close the setup is on the 4500, but would you be able to snap a couple pictures where the quick disconnects for the backhoe attach to the supply lines? I'm guessing it should be somewhere near the rear axle, but nothing looks right. Thanks!
 

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