jeff9366
Super Star Member
- Joined
- Jan 14, 2011
- Messages
- 12,777
- Tractor
- Kubota Tractor Loader L3560 HST+ ~~~~~~~~~~~~~ 3,700 pounds bare tractor, 5,400 pounds operating weight, 37 horsepower
'FARMWITHJUNK' ON PLOWS
Re: Setting up a moldboard plow
With a mounted plow, the 3-point top link SHOULD be straight in line (front to rear) with the centerline of the tractor. There is SOME leeway with that, but "in a perfect world", it should be straight.
In that same "perfect world", you set the tractor to match the plow, and NOT the other way around. Any plow has what is called the "line of draft". That is essentially the center of the work load.... That lime of draft should be centered behind the tractor, THEN, the furrow side rear wheel of the tractor should be set just to the outside of the front bottom.
Width changes (increases) with a 3-bottom plow (or larger)
With the majority of newer tractors having all sorts of different tire combinations, (ie R4,s turfs, ect) and the lack of adjustability of track width, SOME deviation from "the rules" may be needed to get a plow to track behind any given tractor.
As far as the offset drawbar..... The offset is there to level the plow when furrow side wheels are in the furrow. Rotating that drawbar is NOT to be used to level the plow from side to side..... That's a job for the leveling cranks on the 3-point hitch. Rotating the offset drawbar will skew the rear of the plow left or right depending on which direction the drawbar is rotated. That will put more (or less) pressure against the landslides, which will in turn make the plow want to follow left of center or right of center. (and you DO NOT use stabilizer bars/links on the 3-point hitch to hold the plow where you want it.) Skew the rear towards the furrow and the plowtends to track to the LAND side, as pressure against the landslides decreased.. Skew the rear of the plow towards the land side, and the plow will track towards the furrow side, as pressure against the landslides is increased.
If you have more than enough tractor (weight and hp) for the particular plow you're using, it's possible for a tractor to "manhandle" the plow when it isn't in proper adjustment. If you're operating anywhere near peak draft load, a plow would need to be "by the book" or else it would pull like the proverbial boat anchor.
With a well designed plow, attached to the tractor correctly, and everything in proper adjustment, and the plow glides through the ground ALMOST effortlessly. Deviate from "perfect" very far and you suddenly have a fight on your hands.