Insert the air nozzle on the head of the rubber tube directly over the tire valve. When you hear the sound of air leaking from the tire, it means the air has been circulated. Keep tightening the air nozzle and the air will no longer leak. When inflating, the meter needle rises with tire saturation. When the needle reaches the pressure tire pressure (generally, the tire pressure of a car tire is 223kpa=35PSI), remove the cap and the air nozzle, and the job is done. The engine made of pure copper does not heat up and is low noise, accelerate heat dissipation and continuously inflate without heating, no gear structure, no impact sound, reduce noise With its own lighting, it is no longer stained at night, it is convenient to use in special circumstances at night, and the wiring groove is hidden, beautiful and practical, and the power cord / tube inflatable is placed in the machine When a normal tire is inflated, it will take about 3-5 minutes to reach the normal tire pressure of 3OPSI, but it will take a little longer for a big one tire. If the tire is blocked, the air does not enter At this point, you must immediately unplug the air nozzle connector and start over, otherwise the motor and the instrument will be easily damaged. >