Jaw crusher often crushes plate and side guard board,as the materials of the impact and tumbling.extrusion and cause its strong wear, this is crushing plate and the measuring of the guard board ,it is major damage form.
After crushing plate wear, it will make the material after broken coarsens, then it can be adjusted unloading mouth the adjusting device, making the move to fixed location nearly, so as to get the product needed for particle size. In the adjustment,it should relax the levers of spring, the adjustment, then adjust the spring tensioning degree.
By the moving characteristics of crushing plate to the bottom of the broken plate than the upper big wear, so when the bottom of the broken plate wears,it can make a turn .