Winch Lubrication: spindle bearings and reducer output shaft bearing should be changed regularly or calcium supplements on the 4th Hebei mine winch grease, oil changed every two years. Before each car should be filled with oil to the open gear. The remaining portion requiring lubrication should be lubricated before each drive, especially the thrust ring and activity hub gear reducer output shaft between two gears should add oil. Sinking winch usage rules: tub suffered its load must not exceed a predetermined value. Buffering and coupling means failure to prohibit work. Only do maintenance work to ensure the full safety of long-term use of sinking winch. Sinking winch load to bear the weight of the suspension device and rope, the load belongs to the static load, is based on the sinking winch anchor pile foundation design calculations.