In extremely cold winter weather, all cooling water in the laser, laser output head, processing head, and water chiller must be completely drained to effectively protect the entire water cooling pipeline and related components.

• Turn off the main power switch of the laser
• Turn off the cooling water，Hang a "forbidding opening the break" warning sign.

Considering the high temperature in summer, we suggest you to adjust the temperature of water cooling machine before operating the equipment, so as to avoid the condensation of moisture. To prolong the service life of the equipment, you should check some parts of water cooling machine following the steps: 1.Check the condenser of the water cooling machine to guarantee an unobstructed wind channel.