Re: 790 hydraulic\'s
Johnson - since my above suggestion of adding the rear hydraulic kit, you could build it yourself to get a circuit to a valve. I'm going to try to explain where to tap into the rockshaft to get power - this is where the rear kit taps in. Look under your seat (standing at the rear of your tractor) You will notice one hex bolt and two hex covers one taller than the other (the two on the right are a round 3/4 or 7/8 inch hex) . The taller one is the one on the extreme right. If you look down the side of the rockshaft housing to the right of the taller, you will see a hex bolt (also 3/4 or 7/8") this is the supply port used for output to scv or the rear kit. If you remove this bolt, and add a hex plug in the port inside the rocksaft housing, and appropriate fittings, you will create a source of power. You will also need a return to the rockshaft housing for the fluid from the valve. This return port is below the taller hex cover to the front of the rockshaft housing. You willl see hex bolt and banjo fitting in front of the taller hex cover, this is the pressure line from you hydraulic pump. The return port is below this fitting. Its to the right of the 3 point drop rate valve. If your dealer is close, see if he will let you see the shop manual, this is illustrated on page 270-05-21. I think I covered where the taps are, but I can't guarantee if it will work or if fittings are available to fit these ports. If you try it, let me know. If I can be of more help, give a yell. If you don't have the parts catalog and the technical manual, I would recommend getting them, they're not cheep, but you can get a great idea of how things work and go together.
