importance of position control

[CobyRupert]

WOW, this has become confusing based on different interpretation of the wording. Position control simply means YOU control the the height/depth/position of the emplement via your lever. Draft control will maintain height/depth
automatically based on draft/load. I have driven tractors of all colors for 50 years. And all except 2 and 9n's have position control. Henry Ford added a lever to over ride the draft control on the 8n to give you a choice of draft or position control. Most newer tractors I have seen do not have draft control.

To the OP if I were to level out dirt in an area of my yard I would want draft control, so when the front wheels go over a high spot or in a low spot the blade will maintain the same contact with the ground and not dig in or lift up
causing another rough spot that gets worse with each pass. My Kubota does not have draft control and it can be done, but you are looking back more than forward and constantly adjusting the height.

Disagree. Draft control is not for maintaining height. It's for maintaining constant pull (by automatically adjusting height). We're 8 pages into this thread and still....
One source of the confusion is the word "draft" has many meanings. You're interpreting it to mean depth, like the depth of water needed to float a ship ("a shallow draft"). In our case, draft is meant to mean "pull", like a draft horse, draft oxen, or drafted in to the army/sport team, etc... ("Hey bartender pull me a cold draft" :drink

 

[ovrszd]

Disagree. Draft control is not for maintaining height. It's for maintaining constant pull (by automatically adjusting height). We're 8 pages into this thread and still....
One source of the confusion is the word "draft" has many meanings. You're interpreting it to mean depth, like the depth of water needed to float a ship ("a shallow draft"). In our case, draft is meant to mean "pull", like a draft horse, draft oxen, or drafted in to the army/sport team, etc... ("Hey bartender pull me a cold draft" :drink

Yep.

Then to complicate things more.....

In the case of top link draft control, it works opposite of what you might think. When the load on the implement increases it pushes forward on the top link. The top link assembly on the tractor is sensitive to that "push". When it reaches a certain point it activates the 3pt and slightly raises it. This diminishes the load on the implement. This reduces the "push" on the top link. This stops the ascension of the 3pt.

In reverse, when the top link "pulls" it activates the 3pt and slightly lowers it. The maximum amount it can be lowered is preset by the operator in where they position the draft lever on the tractor.

Makes perfect sense huh...….

 

[Turbys_1700]

To further confuse the confused...
Traction Booster was the nomenclature Allis Chalmers used for draft control...
They had to be different...
Just like the snap coupler verses 3 point...
Here is a video of the wd45...
Skip to the 5 minute mark...


195's Allis-Chalmers promotional film for WD-45 tractors - YouTube

 

[SDT]

To further confuse the confused...
Traction Booster was the nomenclature Allis Chalmers used for draft control...
They had to be different...
Just like the snap coupler verses 3 point...
Here is a video of the wd45...
Skip to the 5 minute mark...


195's Allis-Chalmers promotional film for WD-45 tractors - YouTube

Agreed, but the AC traction booster system functioned in a completely different manner, because AC did not have a three point system at the time (as well as other reasons).

SDT

 

[David Wayne]

Disagree. Draft control is not for maintaining height. It's for maintaining constant pull (by automatically adjusting height). We're 8 pages into this thread and still....
One source of the confusion is the word "draft" has many meanings. You're interpreting it to mean depth, like the depth of water needed to float a ship ("a shallow draft"). In our case, draft is meant to mean "pull", like a draft horse, draft oxen, or drafted in to the army/sport team, etc... ("Hey bartender pull me a cold draft" :drink

That is pretty much what I said, Draft control will maintain height/depth based on draft/load, Load being Pull and it will raise or lower accordingly to the load. I did not misinterpret draft, I listed it as draft/load or pull if you prefer. As for a rear blade, it will definintely help prevent digging in on uneven ground.

 

[JWR]

Sorry, JWR, but you are simply incorrect.

Most (not all) SCUTs and some CUTS sold within the past 15 years or so do not have position control.

...

SDT

This thread has been full of mistakes, misunderstandings and plain old "being wrong." Quite a combo. I just realized I had been wrong (saying all tractors I had ever used had position control) in post #5. I was simply incorrect as SDT said in that regard. Of course my BX2200 reminded me of the error while I was mowing this afternoon ! Yes it has a "return to center" lever with raise and lower done by the user from that center position, NOT a numbered, repeatable setting normal for position control. The machine itself reminded me today.

 

[dnw64]

I would never buy any tractor, even a SCUT, without position control.

Position control was removed from many SCUTs several years ago in order to save cost. JD has returned it to their "premium" line of SCUTs and I do not believe that MF (Iseki) ever removed it).

Well, I guess it depends on what you mean by "position control". To my understanding, "position control" means that every time you set the lever at Point A, the 3pt will go to a certain level, and when you set the lever to Point C, it will go to a different, but pre-set and certain level, and when you set it to Point E, etc...

My MF GC2300 does not have "position control" according to my understanding. Yes, you can adjust the level, similar to setting the height of the FEL. But there is ZERO repeatability, and a lot of guesswork involved in returning to a previous level.

The GC2300 is the first relatively modern tractor I ever owned or operated, so I was quite pleasantly surprised when I got my B3030 and found how 3pts are "supposed" to (or, at the least, can) work

 

[SDT]

Well, I guess it depends on what you mean by "position control". To my understanding, "position control" means that every time you set the lever at Point A, the 3pt will go to a certain level, and when you set the lever to Point C, it will go to a different, but pre-set and certain level, and when you set it to Point E, etc...

My MF GC2300 does not have "position control" according to my understanding. Yes, you can adjust the level, similar to setting the height of the FEL. But there is ZERO repeatability, and a lot of guesswork involved in returning to a previous level.

The GC2300 is the first relatively modern tractor I ever owned or operated, so I was quite pleasantly surprised when I got my B3030 and found how 3pts are "supposed" to (or, at the least, can) work

Position control is kind of like a remote control TV or a microwave oven. You might not realize that you need it if you've never had it but once having it, you will never be without it.

SDT

 

[dnw64]

Is this video's presentation of the Kubota quarter inch valve accurate to other brands?

Not for MF GC series.

Although there is mention of it here and there, I have never found the "quarter inching" function. It's entirely like the FEL (except only single direction, down by gravity); move the lever up or down until it's where you want it, and let go...

 

[ovrszd]

Not for MF GC series.

Although there is mention of it here and there, I have never found the "quarter inching" function. It's entirely like the FEL (except only single direction, down by gravity); move the lever up or down until it's where you want it, and let go...

Your description is not position control.