A cold wave is coming, remember to preheat the machine when starting the air compressor in the morning. The method is as follows: press the start button and wait for the air compressor to run for 3-5 seconds before pressing the stop button. After the air compressor stops for 2-3 minutes (it must be done every 2-3 minutes due to internal pressure in the tank), repeat the above operation! Repeat the above operation 2-3 times for ambient temperature C, and 3-5 times for ambient temperature below -10C! To prevent the main engine of the air compressor from being lubricated poorly due to the high viscosity of low-temperature lubricating oil, which may cause dry wear of the main engine, damage or jamming of the machine head, and increase the current of the frequency converter, resulting in OC/OL and other situations! After work, be sure to drain the condensate water from the air storage tank and pipelines to prevent them from freezing and cracking. No matter how good the machine is, everyone needs to maintain and upkeep it together!