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ChadS
05-06-2004 06:28:25
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Re: Drawbar Length and Balance Theory in reply to Mopower, 05-05-2004 08:55:40
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HMMM, have to put my thinkin cap on here!! In balancing tractors, you have a few things to look at, HP, weight of the tractor, track conditions, tires, air pressure, hitch dimentions, well the list can go on and on, all of the above affects the amount of hook the tires get on the ground. It also depends on what the rules say you can use for weights, our club in div 1 farm class, only stock weights in the stock locations. and then mods use suitcase weights, allowed anywhere on the frame. On the farm stocks. I look at how the sled loads the tractor during the pull. higher hp tractors are a SOB to make hook up right, for years, I blew the tires off my big H, then I learned about air pressure, I had a good set of cuts, but always ran 13-15 psi in the tires, backed them down to 10-12 and she started hooking up, and going down the track! we also have a rule in our club,, the front end cant come off the ground over 20 inches, measured by a chain hanging off the front end, in reality, I dislike this method, one more thing to get DQed on, but look at it this way too,,,,, the balance is more crutial to keep it down under 20 in,, so you learn really quick to balance it out. On hitch specs, I run what the rules allow me, on farm classes, 28 in from center of axle, and 18 high. On the light classes, I run about 100 lb on the front wheels, in first gear, works great, the heavy tractors are loadingthe rear wheels with god awful amounts of weights,,, and over 300 lbs of weight or more, and it comes down to how hard the track is, and how much the sled loads the tractor during the pull. Look at the hook chain for the length, and how far the others are going down the track, and what they are doing, then adjust to be close to the leader in the class, Chad
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