The parts and components of the dust collector shall be checked and protected after being used like other machines. When checking the oil level, cut off the power supply to prevent electric shock! Wait for the reducer to cool down! Remove the oil level plug and check whether the oil is full. Install the oil level plug. When changing the oil, the viscosity of the oil increases after cooling, and it is difficult to drain the oil. The reducer should change the oil at the operating temperature. Check whether the three-phase four wire socket is grounded as required. After the power supply is connected, check whether the power supply is in phase failure and whether the compressed air is firmly connected with the interface according to the specified value. After the dust machine has been used for a period of time, when the resistance of the fine dust paste cylinder of the filter cylinder is large, the pulse width should be adjusted (original setting: 0.5s, adjustment range: 1-99s). Press the setting button, the pulse width light will be on, press "+" to increase the pulse interval, press "-" to reduce the pulse interval, which can be adjusted to the appropriate value as required.