1. When the pressure of the accumulator is lower than 8MPa, nitrogen can be supplemented by nitrogen bottle and nitrogen charging tool. Connect one end of the nitrogen charging tool to the nitrogen bottle and the other end to the accumulator.
 

 

2. When the pressure of the accumulator is higher than 8MPa, it is impossible to fill the accumulator with nitrogen bottle and nitrogen charging tool. In this case, nitrogen charging car, filling tool and nitrogen bottle can be used together to replenish nitrogen for the accumulator. Firstly, high-pressure hose is used to connect the nitrogen bottle with the air inlet of the nitrogen charging car, the air outlet of the nitrogen charging car is connected with the accumulator air inlet through the nitrogen charging tool, the output pressure is set on the nitrogen charging car, and then the valve of the nitrogen cylinder is opened, the nitrogen charging car is connected to the power supply, and the boot knob of the nitrogen charging car can be opened to complete the inflation