2.2 When the hoist is blocked, close the feed gate, cut off the power switch, remove the bottom cover of the hoist, and unload the materials so that the hoist can rotate normally, and then install the bottom cover;
2.2 When the lifter appears blocking material, close the feed gate, cut off the power switch, remove the lifter bottom cover, the material is unloaded, so that the lifter can turn normally, and then install the bottom cover;
2.2 when the elevator is blocked, close the feed gate, cut off the power switch, remove the bottom cover of the elevator and discharge the materials, so that the elevator can rotate normally, and then install the bottom cover;<br>