The mower would tend to move up and down quite a bit. It's virtually impossible to mow (with a bush hog as an example) while using draft control function to regulate cutting height. Biggest "problem" with using the draft control to raise and lower implements not needing "draft control" is maintaining a constant operating position. The fact that everything is still working is a good indication there's no problems. Knowing HOW somthing works helps to understand WHY it works. The parts manual has exploded views, allowing you to see how everything is assembled. This is where service manuals and parts manuals are EXTEREMELY helpfull in understanding how various parts and pieces operate. The position control goes into the rear end housing via a hollow tube with the draft control entering via a round rod INSIDE that hollow tube. The two levers do in fact "combine where they go into the tractor" in a manner of speaking. The position contol rasies and lowers the implement being used, correct While the draft keeps the implement at the proper level, say for discing When I have both controls in the lower position. A turn or two on that screw should make a remarkable difference. I have a MF135, and want to make sure I am using the postion and draft control poroperly. Tighten the screw on the draft control lever until it creates enough "drag" to hold that lever while you move the position control lever. You'll see a screw with a spring tentioner on the side of each lever. No, the draft control lever shouldn't move with the position control lever. The position control function is far more capable of raising heavy loads. You may even find that the draft control function won't raise loads heavy enough to be at the upper limits of the hydraulic system's capabilities. Using the draft control lever to raise and lower heavy implements will cause the draft control "mechanics" to be working harder that they normally should be. In any event, you should never be using BOTH at the same time. The draft control lever is used ONLY when you're wanting "draft control" for your implement. When you're using a "soil engaging implement" such as a moldboard plow, a subsoiler, or even a disc, use the draft control lever only with the position control lever left in the raised position. Leave the draft control lever in raised position. Use the position control lever to raise and lower just about every implement. With the 135's controls, you use ONE or the OTHER, but not BOTH at the same time. It was a departure from earlier Fergusons where both levers were sometimes used at the same time. The 100 series Masseys use what was known as the "advanced Ferguson System draft control".
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