Results 1 to 9 of 9
  1. #1

    Join Date
    Apr 2005
    Posts
    23

    Default Draft Control vs. Position Control

    I'm new to the tractor game and I am thinking of buying a utility tractor to do some general purpose stuff and play with a little ploughing as well.I am learning that there is a difference in the hydraulic controls for three point hitch attachments and that position control is inferior to draft control.Could I have a little more insight into this difference?
    Most of the lower end tractors seem to advertise position control.

  2. #2

    Join Date
    Jan 2005
    Posts
    171
    Location
    Central Kentucky

    Default Re: Draft Control vs. Position Control

    EldonC

    Most tractors now have 3 positions on the 3 point lift control. In position control the main lever position is directly related to the height of the three-point hitch. In draft control the main lever actually selects the tractive force of tillage implements. In mixed control the function of the main lever is a combination of position and draft controls.

    General rule for using the mode selector in the 3 positions is this: Position control is the most widely used and should be used for all implements carried in three-point hitch above ground. In this mode, three-point hitch maintains constant height depending only on the position of the main lever. Draft and mixed control should only be used for tillage. Since pure draft control can be oversensitive, mixed control is usually better. In draft control, the unit adjusts the height of the hitch so the traction force remains constant. The amount of tractive force is adjusted by moving the main lever forward increases the tractive force, or plowing depth.

    Hope this is some help on draft control vs. position control. I am sure other people on this board can add more about draft vs. position control.

    Cabinholler

  3. #3
    Elite Member
    Rest in Peace

    Join Date
    Apr 2003
    Posts
    3,741
    Location
    New Hampshire
    Tractor
    Kubota B2710, IH TD6-62 dozer with Drott 4n1 bucket loader

    Default Re: Draft Control vs. Position Control

    Take at look at this link. it should answer most of your questions.

    3pt lift types - position vs draft

  4. #4
    Bronze Member
    Join Date
    Feb 2005
    Posts
    73
    Location
    VA southeastern
    Tractor
    Kubota L3430 HST, 52 Ford 8N, JD455 AWS, Bayou 300 ATV

    Default Re: Draft Control vs. Position Control

    MadReferee... I went to your posted link, and as always, one answer begets another question. Do you know of any tractors out there that have "true" position control... I don't think that I have ever ran across one. Thanks

    Pete

  5. #5
    Platinum Member Pooh_Bear's Avatar
    Join Date
    Jan 2005
    Posts
    739
    Location
    Dunlap TN 25 miles north of Chattanooga
    Tractor
    Early 1949 Ford 8N

    Default Re: Draft Control vs. Position Control

    The 8N tractor has position control. and draft control.
    The 9N and 2N tractor has draft control only.
    but these two tractors can be converted to position control.

    If I had to pick I would go for position control.

    Pooh Bear

  6. #6
    Elite Member
    Rest in Peace

    Join Date
    Apr 2003
    Posts
    3,741
    Location
    New Hampshire
    Tractor
    Kubota B2710, IH TD6-62 dozer with Drott 4n1 bucket loader

    Default Re: Draft Control vs. Position Control

    </font><font color="blue" class="small">( Do you know of any tractors out there that have "true" position control... I don't think that I have ever ran across one. )</font>

    What is your definition of "true"? The full featured kubota B-series and L-series and most of the NH tractors have the feedback linkage and circuit. What else is there?

  7. #7
    Bronze Member
    Join Date
    Feb 2005
    Posts
    73
    Location
    VA southeastern
    Tractor
    Kubota L3430 HST, 52 Ford 8N, JD455 AWS, Bayou 300 ATV

    Default Re: Draft Control vs. Position Control

    If you go to the link in MadRefree's post the 8N type of control is described as "non-position".... It just lets you control when you stop after you go past where you want to be then you have to reposition by moving up to the exact level you wanted. "True Position Control" has additional linkage to automatically do all the adjusting to a preset level.

    All of the tractors that I'm familiar with have a stop knob on the position control assembly that only prevents going past a certain point, and in most cases that is close enough. The "true position control" seems to be a real refinement of that concept...

    Pete.

  8. #8
    Bronze Member
    Join Date
    Feb 2005
    Posts
    73
    Location
    VA southeastern
    Tractor
    Kubota L3430 HST, 52 Ford 8N, JD455 AWS, Bayou 300 ATV

    Default Re: Draft Control vs. Position Control

    I went back and read the description again. Once again I was reading too much into it.
    I'm going out on a limb here...but "all modern tractors have true position control".

    <font color="orange"> </font> "if I could keep my mouth shut, maybe people would think that I'm a lot smarter."

    Thanks for clearing it up...

    Pete.

  9. #9
    Super Member JerryG's Avatar
    Join Date
    Apr 2000
    Posts
    7,229
    Location
    Northwest Arkansas
    Tractor
    MF 1440-4 PowerShuttle

    Default Re: Draft Control vs. Position Control

    Position control is a lift design that allows repeated implement height or depth at a certain level which corresponds with a certain location on the control slide. Every time the control lever is placed in a chosen place, the implement will be at the same location as it was the last time that the control was at the same location.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
© 2016 TractorByNet.com. TractorByNet is a registered trademark of IMC Digital Universe, Inc. Other trademarks on this page are the property of their respective owners.