put the new valve in the PB line where it exits the FEL valve. put the new valve in the PB line where the backhoe was (figuratively) or 2. Then you have to plumb the new valve into the power beyond flow coming out of the FEL valve. I suspect you will have to buy a fairly expensive ($500 or more) sectional control valve from Surplus Center or the like and add a joystick kit for two of the spools. I believe the pump on the 455 is 23gpm, but I am not sure. That means a new three spool valve with a flow rating to carry all the pump output.
If only one rear cylinder were needed, and if your 350 also has that third FEL valve section, you could use it by just running a couple of 3/8" lines from the FEL valve.īut I assume you will need three circuits: one for the lift cylinder on the TPH you are going to build, one for the tilt, and one for the tip. My FEL valve has three sections: one for the booms, one for the bucket, and a third spare that is not used now but is available for a 4-way bucket. As you also know, when the backhoe is removed those hoses must be connected to each other so the power beyond from the FEL valve has a path to the tank on the crawler. One is a pressure line from the power beyond port on the front end loader directional control valve, and the other is a return to tank.
There are two 1" hoses that quick connect to the backhoe, as you said. I suspect the hydraulics are about the same on your 350 as my 455. ImageShack Album - 10 images Seems to me the hydraulics will be the hardest part. These pictures show how someone else did it. My swing motor is leaking badly around the upper shaft seal and I am going to rebuild it on my Thanksgiving holiday. I have a similar arrangement with a 455D, but my backhoe is the older 9300 model with the barrel shaped swing motor rather than the newer swing cylinder feature of yours. I will trade this for some later help on what your name implies.
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