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This is how I plumbed the loader valve to the tractor hydraulic system. cut pressure line from tractor pump and installed into inlet port on loader valve, outlet port from loader valve then tied back into other end of pressure line that runs to 3 ph valve. The existing return line did not change except that an additional oil tank was built into the design of the loader frame and a spin on cartridge filter installed. Thank You deansa

3 ph not working
Yanmar Tractors
Replies 8 Post by deansa

The loader that I,ve installed is complete and working and have cycled fairly well. My question is that the 3 point hitch does not work like it did before the loader being installed. The tractor is a Yanmar 155D, loader shop built using double acting bucket cylinders, single acting lift cylinders, and double spool, open center valve. I have yet to make final adjustments to the new relief valve, awaiting new pressure gauge'', but it is backed off until then. Also I notice that when the bucket cylinder is backed off completely, the valve handle ''snaps'' differently then the loader handle.

Loader works
Yanmar Tractors
Replies 2 Post by deansa