1. When grinding, there must be enough pressure to cool the person to ensure the efficiency of grinding and the service life of the grinding wheel.
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2. If the speed suddenly drops sharply during the use, the mill pressure should be reduced. Try not to use it overload, otherwise it will damage the motor.
3. Every day after work, the glass residue on the equipment must be cleaned. Be careful not to touch it by hand, but rinse it directly with water.
4. Add lubricant to the equipment every half month.
5. Prevent bad water pipes in winter. The cooling water in the water pipes must be drained after work every day.
6. Keep the vacuum pump oil at the specified position at any time. 
Used glass shaped machine maintenance tutorial