H 3 Point Adapter Hydraulics

I recently posted asking how to install the hydraulic piping for a 2 cylinder 3-point adapter hitch that I am considering buying from tonystractors.com. Has anyone installed this hitch. I want to put it on a 51 H with a Liftall system. My concern is that the belly pump reservoir may be too small for operating the two lift cylinders, thus requiring installation of an aux oil tank. If you have installed it, can you either post or send me some pictures of how you mounted the valve operator and the aux oil tank if you used one, and advise the size of the tank., Pictures of the hose routings would be very useful as well.

Thanks for the help.

The diagram shows a simple lift only system. The cylinders are small and will be just fine for the reservoir. Use a black iron "T" in the location I have spliced the hoses. The hose going forward attaches to the right hand (passenger) side of the tractor where there is an elbow. 1/2 inch NPT thread. Make sure the hoses are held away from being pinched or getting in your way. Jim

Jim, Did you post a diagram. I don't see one in your reply above. Thanks for the quick response.

Oh Yeah the Image. Duh!

Jim is correct. However,remember to install a vent on the 'unused' side of the cylinder to prevent air/oil 'lock'.

Ive had my Worksaver on a M and an H and never needed any extra capacity. My Saginaw doesn't need any extra capacity either. On a side note, I think the picture Tony use to have is a pic of a Saginaw unit, that are no longer being made.

don't worry about hydraulic oil capacity. I used to have a loader on h and had no problems

If you want it even simpler, connect the left cylinder to the front port on the left side, and the right cylinder to the port on the right side. This gives you power up, gravity down, which is typical of a 3pt hitch.

Are the lines from the belly pump left/right elbows the pressurized supply lines to the cylinders and also the return lines for gravity down operation?

Yes. I have mine plumbed like Jim shows. It was a tad cheaper than 2 hoses all the way back.

This hookup eliminates the need for a separate control valve...correct? If so, does the Liftall control rod give you enough control so that the height of the connected implement...in this case a shredder...can be easily controlled?

Yes. The rod has 5 "locations" in its travel, 3 are obvious, being as follows: "Hold" Rod in mid position with the welded on stop hooked on the cast support bracket --- "Lift completely" Rod pulled all the way toward the operator. (this is a detent position and the rod will stay in this position until the system pressure (end of travel) causes it to return to "Hold") --- "Down" Pushing the rod all the way away from the driver after lifting it beyond the welded stop. This drops pressure about as fast as the oil can flow through the fittings and hoses. Two are less obvious,----"Lift but not detent" this is pulling the rod rearward but not all the way. It does throttle the lifting to a degree, and can allow small adjustments in the amount lifted. --- "Throttling to lower" is the 5th position, This has a bit of an issue, the more pressure trapped in the lines, the harder it is to lower something slowly. (not convenient) This location is an inch or so toward the lower position (down) but when little pressure is in thesystem it feels almost like it is not there. when a full max lift pressure is in the system, it almost locks the rod, and lowering gently is difficult.
I hope this helps. Jim

Yes. Assuming you mean a bush hog type shredder, I have no problems running a 6ft shredder with my M. One thing I did do, when I have my shredder on, I use those cylinder stops you slip on the shaft. I have a nasty habit of letting it all the way down, just use to dropping it all the way over the years of plowing with mine I guess. Plus, it helps keep the whole field level. But yes, the Liftall is capable of controlling the height.

Jim, I really appreciate your quick and knowledgeable responses to questions on this forum...mine included. I don't mind admitting I am a real rookie that enjoys my equipment but I certainly don't have the level of knowledge you do about how it works, etc. So thanks for helping.

Would the use of a modern open center control valve give more, easier operator control? If so, how would it be piped into the system. I don't want a system that allows the shredder to drop and bounce, which it sounds like will happen if the "Throttling to Lower" function is depended upon for this sort of control.

Two responses: I would try it as is first. THe reluctance to move into a throttled down position is usually only a difficulty if really high pressure is in the system. Lifting 800 pounds with a loader will do it. Second is Yes an open center one way spool valve would be easier to control if the issue does happen. Plumb it into the right hand outlet, keeping the others capped. Pull the rod into the detent (full lift) position and bungie it there or put a tiny vice grip pliers on the rod to hold it in the "lift" position. THis just keeps the hydraulic oil circulating. The open center outlet to the return should be plumbed into the drain of the Liftall with a "T" so that draining can happen, and the oul has a continuous return path. Jim