The cables of the power transmission switch and the cables used for the main circuit switch equipped for the machine tool must meet the power requirements. Make sure that the maintenance connection wire that is not smaller than the cross-section of the phase conductor is reliably connected to the PE terminal of the machine tool. Before connecting to the power supply, carefully check whether the electrical system is intact and pay attention to whether the motor is damp. Fill the oil tank to the oil mark, check it if necessary, and refill the oil from the beginning. All switches and operating handles should be sensitive, smooth and easy to use. To check their movement status. For the smooth point, oil type and corresponding oil level, please refer to the smooth label. Check whether the motors, gears, and other components announce abnormal noise. Check the smooth condition of each sliding part. When the machine tool is working, check the working condition of the oil pump together to ensure its normal and useful operation. Check whether the protective cover and safety maintenance device are in outstanding condition. Check the tightness of the belt. If the belt is worn too severely, it should be adjusted and replaced in time. It is forbidden to place anything on the surface of the machine.