Massey ferguson 135 draft control adjustment12/11/2022 Next, increase the engine speed a little and note if the noise knocks faster.Ĥ. You should hear the knocking noise when the arms stop at the top.ģ. Carefully raise the 3PL arms with the Draft lever. Next, start up the engine and let it idle. Move each lever and you should see the Position control tube moving, or the end of the Draft control shaft moving when you push or pull the relevant lever.Ģ. The Position control shaft is a tube with the lever near one end but not at that end, and the Draft control shaft is inside it. The first pic below is what mine looks like from underneath. Look under the round arch-shaped mount for the lever assembly. Do these first steps with the engine stopped: View attachment 487505 View attachment 487506 View attachment 487507ġ. When you are using one lever, is the other lever at the top? Remember, the Position lever cannot be in "Constant Pumping" position - that is the cause of the noise I believe you are hearing. You said the Position lever doesn't work, but the Draft lever does. This function should never be used without an attachment connected - otherwise it will destroy the internal pump. The "Position" lever also engages a function called "Constant Pumping" which is used only when a hydraulic attachment such as a loader is connected to the system. In this mode, the Draft lever is usually at the top. The Position lever is used when you want to lift an attached implement to a specific height. When using the Draft function, the Position lever is usually near the top, and when you want to raise the plough to turn around you just pull the Draft lever right up. You set the lever at a suitable location and it will let the hydraulic system "feel" the load on the tractor and adjust the height of the plough to keep it from overloading the tractor and losing grip. The Draft Control is used when you are ploughing the soil. "Position" regulates lifting height, and that height will be kept automatically. "Draft" regulates lifting strength or will sense and regulate load. The outer lever with the round ball-shaped handle is the Draft Control, and the inner square-shaped lever is the Position Control. The noise you tell me I think is a knocking or a hammering sound? Like you hit a thick piece of timber with a hammer? Does it also seem related to engine speed? Hi, Your tractor has controls a little different to mine, but the operation is mostly the same.
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