1. The lining plate is leveled and adjusted during installation, so that the load around the lining plate is evenly balanced when it is broken.

　　2. When the liner is installed, the filler is fully mixed and stirred evenly, so that the strength of the filler is high after solidification.

3. When the liner is installed, the solidification time of the filler is generally required to be about 16 hours, so that the filler is completely solidified and sufficient strength is ensured before it can be broken.

　　4. When the lining plate is installed, the locking screws are fastened in place, and the fastening strength is sufficient, and the lining plate is not easy to loosen during the crushing process.

　　5. When the lining plate is installed, the upper pressing cutting ring and the lining plate are firmly welded. During the crushing process, check whether the welding seam is opened once a month. If the welding is opened, it will be welded firmly.

　　6. In the crushing process, in order to prevent the crushing cavity from entering the iron block frequently, a reasonable electromagnetic iron remover is installed on the head of the feeding belt to remove the iron block entering the crushing cavity, so that the material on the lining plate is balanced and even during the crushing process.