The commonly used equipment during the production process is jaw crusher, impact crusher, sand making machine and fine crusher. Because of the harsh working objects and working environment, the crushing equipment in the production process will be worn out and damaged. In order to prolong the service life and reduce the production cost, the operator should regularly maintain the machine. Hongxing machine also reminds the user, we should pay attention to the maintenance of the equipment in the right way. After years of research, our experts have summarized some knowledge and methods about the maintenance of equipment. To the overall maintenance of the quarry crusher, the engineering time can be divided into three cycles. They are the overhaul time, repair time, and minor repairs. The engineering time should in accordance with the production situation. The minor repair usually needs a short period of time; we usually control it between 1-3 months. It involves the inspection and maintenance of the external parts, adjusting device, linings and other components. Repair time is generally between 1-2 years. The maintenance content of this stage includes detachable parts, lining, bearing and other parts. Overhaul time is generally longer than repair time. Between 4-5 years, the equipment is needed to carry out an overhaul work. In addition to the meticulous renovation of the repair time, the maintenance work of overhaul time also includes the change of favoritism axis and moving jaw and the repair of damaged parts.