When the valve of oil inlet pipe is not opened to the right position, it shall be adjusted to the right position in time; When the oil return groove on the bearing pedestal or spherical bearing bush is blocked, stop the machine for inspection and clean the oil return groove and oil return pipe in time.

Regularly check the wear of lining plate and the tightness of fasteners, and timely tighten the bolts or refill zinc alloy.Pay attention to uniform feeding during ultrafine vertical mill operation.

Regularly check the wear of spherical bearing bush, and timely replace the spherical bearing bush with excessive wear.

Check the oil level of the oil tank. If the amount of oil in the oil tank is reduced and the oil level is significantly decreased in serious cases, stop the machine for inspection and find out the cause of the fault in time for corresponding treatment.