It will automatically stop when refueling is full. When there is no quantitative refueling, when the oil level in the fuel tank submerges the nozzle of the fuel gun, the fuel gun will automatically stop refueling to prevent oil overflow. Each refueling gun has a self sealing device (commonly known as a sensor), which is the size of a small thumb cap and is located inside the nozzle of the refueling gun.
Precautions for using refueling guns:
1. Before use, check whether all components of the measuring refueling gun are in good condition. Adjusting the flow rate to the rated flow rate has been proven in practice to have high accuracy when using a metering refueling gun at the rated flow rate;
2. When using, try to maintain the horizontal position of the refueling gun dial as much as possible, and do not hit or collide;
3. Regularly remove dirt from the filter screen and prohibit using it to measure solutions such as water, alkali, and acid;
4. The measuring refueling gun has been adjusted and verified to be qualified before leaving the factory, and users generally cannot disassemble it at will.
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