1. 筛网的维修与更换。筛网由钢板或铁板穿孔制成。当筛网磨损或被异物破坏时，如果损坏不大，可以用铆接或焊接修复；如果面积较大，则应更换新筛网。在安装筛网时，筛网的毛刺面应向内，光滑面向外，筛网与筛框应紧密贴合。当安装环形筛时，环的搭接应与旋转方向一致，以防止物料卡在搭接处。
Second, the lubrication and replacement of the bearings. The 玉米研磨机 is cleaned after every 300 hours of operation. If the bearing is oil lubricated, it is advisable to fill the bearing housing clearance by 1/3 when adding new oil, and the maximum is not more than 1/2. Just tighten the capped oil cup cover a little before operation. When the 玉米研磨机 bearing is seriously worn or damaged, it should be replaced in time, and pay attention to strengthen lubrication; if using tapered roller bearing, pay attention to check the axial spacing of the bearing to keep it 0.2-0.4 mm. If there is discomfort, increase it. Reduce the paper pad at the bearing cover to adjust.
Third, the replacement of the claws and hammers. Among the pulverizing parts, the pulverizing claws and the hammer pieces are the wearing parts in the 玉米研磨机, and are also the main components affecting the pulverizing quality and productivity. The pulverizing claws and the hammer pieces should be replaced in time after being worn. When the jaw crusher replaces the claws, the disc should be pulled out first. Before pulling out, first open the round nut lock piece on the back of the disc, use a hook wrench to unscrew the round nut, and then pull the disc out with a special puller. In order to ensure the balance of the rotor operation, it is necessary to pay attention to the complete set of replacement when changing the teeth. After the replacement, static balance test should be done to make the 玉米研磨机 work stable. Be sure to tighten the nut when assembling the jaws, and be careful not to miss the spring washer. The qualified parts should be selected when changing the teeth. The weight difference of the single teeth should be no more than 1.0-1.5 grams.