Results 1 to 6 of 6
  1. #1
    New Member camperbc's Avatar
    Join Date
    Mar 2013
    Posts
    15
    Location
    Fogo Island, Newfoundland
    Tractor
    Sears Craftsman Professional 24HP

    Default Help me understand the need for "toe in"...

    I understand that these tractors come with a factory set toe-in, (is quite noticeable) but I am hoping that someone can explain why? (mine is a brand-spanking-new Canadian version of the PYT9000; Kohler 24HP V-Twin, 46" mower deck, Hydrostatic transmission) To my way of thinking, I would assume that a tractor would steer better if the front wheels were perfectly aligned. The fact that they are toed in would lead me to believe that this would put excessive stress on the steering linkage, bearings, etc, and would even cause premature tire wear, no? So then, this toe-in actually improves the steering? Or am I missing something here?

    Looking forward to hearing from anyone who can shed some light on this great mystery. Anyway, I just want to add that I am so far loving my new toy!

    Thanks!

  2. #2
    Gold Member
    Join Date
    Jul 2004
    Posts
    301
    Location
    Cartersville (NW) Georgia
    Tractor
    John Deere 1025r TLB

    Default Re: Help me understand the need for "toe in"...

    The right amount of toe in keeps the vehicle going straight with a minimal amount of added stress and wear. It is possible to have too much adding significant wear and stress.

    If it appears to be to much it likely is. Check the manual.
    '13 JD 1025r TLB
    60D MMM w/ electric over hydraulic independent lift
    Custom Seat Springs (no more bottoming out)
    Single Point Quick Disconnect
    180* Thermostat
    Artillian Forks (42")
    Ken's Bolt On Hooks
    Omni Transformer

  3. #3
    Gold Member
    Join Date
    Jul 2004
    Posts
    301
    Location
    Cartersville (NW) Georgia
    Tractor
    John Deere 1025r TLB

    Default Re: Help me understand the need for "toe in"...

    Without toe in a vehicle gets "darty" and near impossible to keep straight.

    Of course on slow moving vehicles (tractors) it isnt near as important but still helps
    '13 JD 1025r TLB
    60D MMM w/ electric over hydraulic independent lift
    Custom Seat Springs (no more bottoming out)
    Single Point Quick Disconnect
    180* Thermostat
    Artillian Forks (42")
    Ken's Bolt On Hooks
    Omni Transformer

  4. #4
    Silver Member BigBoyinMS's Avatar
    Join Date
    Nov 2005
    Posts
    242
    Location
    Central Mississippi
    Tractor
    '73 MF135 & Montana 4540

    Default Re: Help me understand the need for "toe in"...

    ...and the wheels naturally want to splay apart when the vehicle is in motion. The toe-in is there to keep it from toeing out when moving.
    They who can give up essential liberty to obtain a little temporary safety, deserve neither liberty nor safety.
    Ben Franklin
    ---------------------------------------------------------------------------
    1973 MF135 Perkins Gas and 2006 Montana 4540 w/FEL

  5. #5
    Veteran Member brain55's Avatar
    Join Date
    Jan 2008
    Posts
    1,613
    Location
    Brentwood, CA

    Default

    Are you talking about toe or camber? I think you mean camber, if the toe is visible there is way too much. Toe-in is when the front of the tire is closer together than the rear of the tire, the difference is typically 1/8" and is adjustable. Camber (particularly on 4wd tractors) will be when the top of the tire is out further than the bottom, this is built-in and is to help steering and drivability under load.

    Brian

  6. #6
    Super Member California's Avatar
    Join Date
    Jan 2004
    Posts
    5,679
    Location
    Sonoma County
    Tractor
    Yanmar YM240, YM186D, and another YM186D

    Default Re: Help me understand the need for "toe in"...

    There are three variables:

    Caster - like a bicycle, the top of each kingpin tilts back. (And the centerline of the kingpin doesn't point right at the axle, it points behind the axle). This has a natural tendency to steer straight. Also (in theory) it will return the steering wheel to center when you let go of the wheel.

    Camber - the tops of the kingpins are farther apart than their lowest point.

    Toein - a little bit of toein prevents shimmy.

    All three should be near spec.

Similar Threads

  1. RVS "Rear View Safety" Camera install short review "pics"
    By Jamming in forum John Deere Owning/Operating
    Replies: 13
    Last Post: 03-19-2012, 10:00 AM
  2. Replies: 0
    Last Post: 08-20-2011, 08:34 AM
  3. Replies: 0
    Last Post: 02-08-2011, 01:46 PM
  4. Help me understand "Downforce"
    By orezok in forum Attachments
    Replies: 11
    Last Post: 11-20-2009, 02:26 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
© 2014 TractorByNet.com. TractorByNet is a registered trademark of IMC Digital Universe, Inc. Other trademarks on this page are the property of their respective owners.