Re: Super M Hydraulics

Posted by john d on July 10, 2000 at 14:04:59 from (206.141.74.34):

In Reply to: Super M Hydraulics posted by K. Johnson on July 07, 2000 at 09:49:15:

Okay...if I'm understanding you correctly, you can do PART of what you want to do. I'm a little confused by the power steering comment, but for now I'm going to assume that it is NOT plumbed into the hydraulic system you're using for the loader and 3pt hitch. I'm even more curious how you are using both a loader and a 3pt hitch if you don't have live hydraulics. (I've got both on an M without live hydraulics, but I can only use one at a time!) If you have the basic "lift-all" system (NOT LIVE) you do indeed have 3 ports, but NONE of them is a RETURN port. They are ALL pressure ports.

I would suggest the following:

Install a ball-type shutoff valve in the line that has the T fitting to the loader. This will let you lock it at whatever raised height you wish to keep it out of the way.

Install a similar shutoff valve in the line to the 3pt hitch, allowing it to be kept at a stationary height.

Run the line to the baler cylinder from the remaining port on the left side of the tractor. This will let you have power to lift the baler pickup without moving the loader or 3pt. hitch.

The single-acting (non-live) lift-all system has all three ports plumbed for pressure when the control lever is pulled. The right-side and front left ports receive pressure first, and at the same time. The left rear port is a "delayed action" outlet for lifting the rear gang of cultivators. When the control lever is pushed down to the first detent position, pressure is released on the front ports. Pushing it all the way down releases pressure on the back port. Oil flows back to the reservoir through the same line it came from. NO SPECIAL RETURN LINE IS NEEDED.

Of course, all bets are off as to this working if you have some sort of hydraulic system other than the basic pre-live, lift-all, belly-pump arrangement!

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