In Reply to: Re: Dearborn 10-156 2 bottom 14-inch adjustment posted by monroe3pt on December 27, 2010 at 18:43:20:
You may as well know how to set up the other adjustment then ,which is HITCH HIEGHT.
its more important to good plowing than any other adjustment you could make.
all moldboard plows are designed to plow a certain depth,this is 1/2 the width of bottom.in other words a 14" plow is designed to plow 7" deep ,a 16"-8" etc.To set hitch hieght measure up from ground at your center of draft point 1/2 of the depth you want to plow.if you were plowing 7 " this would be 3 1/2 " and make a mark. the plow hitch should be set so that the hitch runs in a straight line from this mark to hitch point on your tractor.on a three point this is done with the toplink. and this is why most manuals tell you how long toplink should be.If you dont have a manual this is how you figure it.(if you dont believe this to be the case,set a three point plow up and pull it until bottom is at its designed depth measured with a rule,or of all things a plow wrench,they do have a use,dig around it with a shovel and you will be amazed to find the lift arms are in a straight line to your center of draft.beieve it or not and you are welcome to try(PLEASE DO) a 14"plow running at 5" deep will have more draft than one running at 7" in whatever type of soil)
On a drawn plow this is set by the HITCH CLEVIS..this is where most folks go wrong.the clevis on a drawn plow IS NOT where it attaches to tractor or whatever,and by setting the hitch hieght you are not moving the drawbar on tractor,your setting the hitch height on plow to match tractor. if you look at one you will find series of holes or some other adjustment at the front of frame where it hooks to what you might consider the drawbar on a trailer .pull a string from the mark you made and tie it on the hitch at drawbar on your tractor and your plow hitch should run in a straight line down it.you can easily see by doing this if the clevis needs to be moved up or down. if its hitched too high front of plow wont go in ground. if its hitched too low back wont go in ground. And heres another little secret,all drawn equipment or even three point equipment has to have this adjustment made or it wont work right. disc harrow must have the hitch level or it wont cut with the front or rear gangs etc.an old tradition in the farming comunity is the one thing that you NEVER BORROW is a mans plow,and if you should borrow one never adjust it! it probably has been set for his tractor from the first day it was delivered and few folks seem to know how to set one up right these days.remember that old farmer whos plowing always seemed to so nice? Hes the one guy around who knows how to set a plow. any child who can reach the pedals can drive a tractor and steer.the secret to plowing is the plow, not who or what pulls it.
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