Shifting W-400 IPTO with air

Wardner · Oct 10, 2010

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I need to shift the IPTO when I'm standing on the ground near the front of the tractor. Now I can shift it there as well as from the operator's seat.

The cylinder is 1.5" bore by 1" stroke. It appears to be fully engaged and disengaged at 40 lbs of air so I could have used a smaller bore. The air compressor is a small 12V unit with an integral air receiver. It is positioned above the belt pulley gearbox. I've added a high pressure electrical limit switch and a pressure regulator,

Nebraska Cowman · Oct 10, 2010

That's enough clever. I'd probably have done it all mechanical with levers and pulleys

Absent Minded Farmer · Oct 11, 2010

Hear, here! You should never leave the seat with the PTO engaged. What are you trying to teach the little kiddies at the tractor shows? HHMPH!! ;v) Looks good from Wisconsin, Wardner. Keep them cool ideas a-commin'. Speakin' of dairy & cool, you had a malted yet?

Mike

Wardner · Oct 11, 2010

Crazy,

Actually, this tractor will be a "Kid Magnet" someday. Aren't all ice cream factories that way?

The remote and extra PTO "switch" will serve as a panic button so that the negligent parents can safely extract their children who become "wrapped up" in all the spinning machinery. I have all the angles covered.

No malted yet, not even a beer.

Janicholson · Oct 11, 2010

Very slick!!
From memory of the PTO lever and its notched retention pawls(both off and on), I would be sure it is capable of rated power transmission at the 40psi point. That works out to just over 70pounds of applied force when on or off. My memory had the lever force at the handle at 20 pounds or so. (just thinking out loud)
An adjustable restrictor on the supply line to the valving would allow a smooth application/braking to take place. Jim

Wardner · Oct 11, 2010

Jim,

Less work to restrict the valve exhaust port on a double acting cylinder. Probably not necessary anyway with the supply line regulator.

Not even sure a slow and smooth engagement is desirable although some of that will occur due to the medium and the springs inside the IPTO. Seems like slippage might promote band wear. At this point, I am thinking I'll want to run the cylinder at more than 40 lbs to insure there is no slippage when loaded. Adjustments will be needed depending on how many freezers are spinning and how much power the ice chipper draws. Tweaking of the system will occur at a much later date.

Janicholson · Oct 11, 2010

Good idea. Depending on the inertia of the attachments, and their individual strength, a modest engage might be wise. A tripple blade bush hog does not need the lever jerked into full engagement, it just over stresses parts. Jim

Shifting W-400 IPTO with air

Wardner

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Nebraska Cowman

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Absent Minded Farmer

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Wardner

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Janicholson

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Wardner

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Janicholson

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