Three point hitch draft control M4700

[JWR]

Sorry, but I think you are confusing draft as a nautical term with draft as a farming term. Draft, as a farming term is the horizontal force required to pull an implement through the soil.
The draft on a 3PH is controlled by raising and lowering the implement by the draft control feature as the implement encounters variation is soil. The position control on a 3PH simply establishes a baseline depth.

Draft (hull) - Wikipedia

en.wikipedia.org

Agricultural Machinery Management (ACIS)

This is a document on , one of a series of documents on cotton crop management. Provided by the University of Arizona.

cals.arizona.edu

Nope. Disagree. This is OK as I think we both understand how the system operates. I won't belabor our permanent disagreement beyond this post.

My MF2660 Operators Manual, pp. 5-21, says, quote, "Draft Control is used to control the working depth of soil-engaging implements." The sensing is all vertical axis. The feedback control loop adjusts lift only in the vertical axis. Any horizontal forces are secondary to the feature, not the goal, and are not controlled by it.

 

[npalen]

Nope. Disagree. This is OK as I think we both understand how the system operates. I won't belabor our permanent disagreement beyond this post.

My MF2660 Operators Manual, pp. 5-21, says, quote, "Draft Control is used to control the working depth of soil-engaging implements." The sensing is all vertical axis. The feedback control loop adjusts lift only in the vertical axis. Any horizontal forces are secondary to the feature, not the goal, and are not controlled by it.

It should read "Draft Control is achieved by controlling the working depth of soil-engaging implements". I think that statements such as in the MF Manual and quoted above are the cause of so much misunderstanding regarding draft control. It is a bit of "chicken/egg, which came first" type of thing. I am by no means saying that the chicken came first.