What phenomena will occur if the tractor shift fork shaft groove continues to be used after wear?

Wear on the fork shaft groove of a tractor can be caused by multiple reasons. During operation, the relative motion between the fork and the fork shaft generates friction, and long-term use will cause the surface of the shaft groove to gradually wear; in addition, dust and sand particles in the working environment entering the shaft groove will further aggravate the wear. Wear on the shaft groove will significantly affect the fit between the fork and the fork shaft. As the wear intensifies, the fit clearance increases, causing the fork to shake during operation and fail to grasp objects accurately, reducing work efficiency; when the wear is severe, the fork may fail to work normally and require frequent replacement or repair, increasing usage costs. Wear on the shaft groove will also increase the clearance between the fork and the fork shaft, resulting in a loose connection. During operation, due to wear on the shaft groove, the fork is prone to detach from the fork shaft, causing unstable connection, increasing work risks, and affecting safety. In addition, wear on the shaft groove will make the surface rough and increase the friction between the fork and the fork shaft. This not only increases the operating force but also accelerates the wear of the fork shaft; when the wear is severe, it may cause the fork shaft to break, making the fork unable to work normally.