Automatic head deviation, steering difficulty reasons: The pull line and the tractor driving force are uneven, and the two are deviated a little distance, so that the tractor automatically biases one side to the side. Remedy: When the tractor swings to the right during the work, you can use the method of moving the suspension shaft or the left suspension point to the right so that the traction resistance line coincides with the driving force and eliminate the swinging of the tractor to the right. Otherwise, reverse adjustment should be done. Reasons for inconsistency between front and rear plowing and ploughing: The plowing frame is not horizontal. Adjustment method: Before the ploughshare cultivating is shallow, when the ploughshare is cultivated deep, the tractor should be shortened by hanging the upper rod; otherwise, the upper rod should be extended. Reasons for inconsistency of left and right ploughing depths: The plough is not horizontal in the horizontal plane. Adjustment method: It can be adjusted by changing the length of the right lifting lever of the tractor suspension mechanism. If the plow frame is left high and right low, then the length of the right lift bar is shortened; otherwise, reverse adjustment is done.