Technical maintenance of Diodela laser welding machine: the system uses electricity and inert gas (15-20 l/min), the cooling system requires distilled water (recommended to be changed every 6 months), lens cleaning (once a week. Cleaning process is simple as the principle is similar to cleaning glasses), lens replacement after they wear out (on average every 1-2 months, depending on use and maintenance quality), replacement of nozzles on demand.