hitch mast attachment

2510Paul · Dec 24, 2016

This hitch mast attachment was in the photo ads. I often wondered how this worked. Can anyone tell me explain to me how this works on a top link sensing tractor?

I can only think that it bumps into the top casting of the plow and as the plow drops or raises it pushes or releases pressure on the top link. That would imply the setup of the length of the top link is critical. Am I close?

Paul

JD Seller · Dec 24, 2016

I do not think the hitch would do much of anything. In the picture I have a set of MF plows. They have a hitch designed for top link sensing draft control. If you look you can see the one set of pins are higher then the pivot points. So you used the top set of pins on top link sensing tractors.

DeltaRed · Dec 24, 2016

Tyler Beuchet (Tyler the plow guy) wrote an article about that in this last issue of GreenMagazine.They were for the 20/30 series two cylinder. He is now makeing them for sale. The one pictured looks like one of Tyler's.

BushogPapa · Dec 24, 2016

What the heck for....???

Set up properly, an F-145 Semi-Mounted Plow will definitely raise the front end when the going gets tough...even with front weights..

Looks like someone had too much time on his hands and confused a Fully Mounted with a Semi-Mounted Plow..

Never saw such a set-up and so UN-neccessary..

BushogPapa · Dec 24, 2016

I see NO WAY this will possibly work..the "link needs to PRESS on the upper link to activate the traction control and that will NOT do it...

Tom OConnor · Dec 24, 2016

This bracket was designed to be used when a F145 Deere semi mounted plow was used on the two cylinder tractors. They activated the load and depth control and also limited how far the front end could come up. They were available from John Deere as an attachment at the time and John Craig made perfect matches as an aftermarket and now Tyler is selling them. I have three plows with these attachments on.

Leroy · Dec 24, 2016

That is the hitch and plow I had for my 5000 Ford. J.D.Seller has the operation correct.

massey 333 · Dec 25, 2016

Bushog,Any non draft or non depth controlled 3 point hitch tractor needed the top link to control plow depth,only unlike a mounted plow the top link floated when raised.Case pre CK tractors are a good example.

2510Paul · Dec 25, 2016

Thanks for the comments.

Yes, that is one of Tyler's.

I can easily see how the MF works, the geometries are very different than the JD. Someone confirmed that the top sensing link activates when pushed forward. Someone else said this mast attachment was designed specifically for the 145 plow. Those comments all help and make me believe the explanation I offered might be it.

I was hoping someone could explain the force vectors that act on the top link as the plow raises and lowers. If anyone has ever seen a pictorial explanation with force vectors that would be nice to see.

Merry Christmas to all.

Paul

Tom OConnor · Dec 25, 2016

Paul,

I will try to post a picture of a plow in the process of being restored that will clarify this a bit. On the casting on top of the main mast (this casting pins to the linkage that steers the back wheel) their is a lip formed in that casting that the part that you are talking about comes up against. Their are three different holes to pin the forward part of the top link and these change the sensitivity of the system. When going accross the field and the plow settles a little deeper this places more pressure on the top link and the hydraulic system raises a bit. When adjusted properly you can watch the indicator guage on top or the power trol work back and forth. It does about the same as the torsion bar that goes thru the lower part of the drawbar frame in the new generation tractors.

2510Paul · Dec 25, 2016

Thanks Tom for your picture and comments.

Hey, nice project. Would you post more pictures as it is completed? Do you have a large sandblaster?

Paul

Tyler-MO · Dec 26, 2016

It's pretty simple in regard to how it works. When set properly and you encounter a gully or low spot, the mast puts pressure on the load yoke and shaft pushing it to the point where it causes the rockshaft to raise until the pressure is relieved. Once you get out of the low spot, the decrease in load on the yoke allows the rockshaft to settle to the preset position by the rockshaft control lever. Basically it keeps you from having to manually raise or lower the rockshaft when uneven terrain in encountered while plowing.

I used this hitch setup on my 630 with 3x14" F145H and with my 720D and F145A this fall. It works great, just as the JD engineers designed it to.

Without this setup, the rockshaft is manually controlled by the operator only; you have to be quick to keep from spinning out or stalling when encountering uneven terrain.

Regards,

Tyler

BushogPapa · Dec 28, 2016

No, there is NO NEED for that "Mast"..properly set up, you WILL get all the weight transferred to the tractor you can use...

The 20 and 30 series Position control handles the depth just fine..maybe a Case needed this, I have no Idea, a JD 20 or 30 series did not need it..

Tx Jim · Dec 29, 2016

BushogPapa
Please explain how one can get correct weight transfer pulling a F145 semi-integral plow without some kind of centerlink attachment since JD 20 & 30 series 2 cylinder tractors have NO bottom link sensing similar to the New Gen JD rowcrop tractors but have centerlink attachment draft sensing????????
Jim

hitch mast attachment

2510Paul

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JD Seller

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DeltaRed

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BushogPapa

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BushogPapa

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Tom OConnor

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massey 333

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2510Paul

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Tom OConnor

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