Our factory MQ1350A cylindrical grinding machine is open when it is used for a long time, and the following faults occur in the hydraulic part. 1. When the grinding head is fast-feeding and resetting is not allowed to grind, the spark suddenly increases. The parking check finds that the grinding wheel is feeding, which makes the workpiece scrapped and easily causes an accident. Treatment method: First check the grinding head fast feed screw and nut, no problem. After
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