Safety operating rules of cutting board saw 1. Read this instruction carefully before operating the machine tool to understand its performance and correct operation method. 2. the grounding device must be reliable before the operation of the machine tool, and check whether other safety protection devices are normal .3, the system should be checked from the power tool, fixture, locking object and so on before starting the machine. Before operating the machine 4., check whether the parts are loose and damaged, and adjust and replace them in time to ensure their normal function. Check that the saw blade rotation direction is correct before 5. operation.