The Toe In/Toe Out will have to be adjusted (if the steering rods to each front wheel have sleeves), just like on a car.
Toe-in is the operating angle of front wheels on a riding tractor. If the front edge of the wheels point inward, towards each other, then the wheels have toe-in. If the front wheels point outward, the unit has toe-out (or negative toe-in). Adjustment of toe-in is necessary to maintain proper steering control.
Unlike automobiles, our tractors have pre-set camber and caster settings. Therefore no camber or caster adjustment is necessary.
Acceptable toe-in adjustment range for all of our lawn & garden tractors is anywhere between 1/16"-5/16". With 1/8" serving as the optimal range.
Detailed toe-in adjustment procedures for the various models of tractors are reviewed in the "Adjustments" section of the Operators Manual for the tractor.
If tires are not toed-in properly after adjustment, it is likely that other part(s) need service or adjustment. axles, wheel bushings, control arms and other steering components may be worn or damaged and will need inspection. Service these items as needed.
You haven't stated your make and model, so I can't send you the manual with the exact procedure for your machine.
SOURCE: Craftsman lawn tractor mower,
The belt is probably slipping because it is not tight enough. look by the belt, inside there is a little spring, you may half to tighten it.
SOURCE: Loss on drive on Poulan Lawn Tractor
Check to make sure the belt is not broken or did not come off the transaxle pulley, you can check by removing battery from under seat and pulling battery box out to examine top of transaxle,Pay close attention to the wire belt guide on the rh side of the transaxle pulley it should be close to the backside of the belt after it is reinstalled.If you recently may have removed the rear tire make sure the square key on the axle didn't drop out.Is the tractor a hydrostat drive? If so make sure brake is not stuck on,if it was it would make a grinding noise.
SOURCE: I have a 20 hp craftsman lawn( hydro gear
It sounds like the oil in transaxle is degraded.The transaxle is supposed to be a sealed unit requiring no service but over time the oil will get dirty enough to cause problems like you are describing.Remove the back hitch plate and look at the transaxle it will have a rubber vent hose or a 1/4 alllen wrench fitting on top. You will need to purchase a battery suction bulb from sears automotive and use it to remove as much oil from transaxle as possible. Warm the transaxle up first by running it around,then suction the oil out.Refill with a good synthetic motor oil 15w-50 or 20w-50 like Amsoil or Mobil 1.Do not use transmission fluid or hydraulic fluid. When adding the new oil back fill it to within 1.5 in from the top,be sure to allow this amount of air space in top of transaxle for expansion.
SOURCE: need to know how to replace drive belt lawn tractor
Check out the video at the link that I am providing and see if it helps you with the drive belt replacement. Sure hope so and best wishes.
http://www.youtube.com/watch?v=YIRUAMSjGfg
SOURCE: Loss of drive in a Craftsman Lawn tractor
I also have a Craftsman tractor with the same problem. Sears repairman said it needed a new transmission and it would cost $1,400 to install. A new one is about $1,000. Anyway, if you remove the battery and the battery tray under the seat it will expose the transmission fill hole (hex). I opened the top and it looked empty. I had a bottle of 90 weight gear oil in my shop and filled the transmission to the top. I have not had any problems with it since. $4.00 bottle of oil verses a new tractor is worth a try.
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