5)将电机冷却器接地短接线拆除，并做好记号；6)将电机冷却器与定子连接

5)将电机冷却器接地短接线拆除，并做好记号；<br>6)将电机冷却器与定子连接螺栓拆除，螺栓按顺序编号；<br>7)利用电机上方单轨吊，将冷却器电机旁空地上进行检修，冷却器下方用枕木垫平，不得影响其它维修工作的吊装和运输空间；<br>8)在电机定子顶部临时进行遮盖，便于定子线圈能够随时加热，遮盖采用一层铝箔纸、两层塑料薄膜，并用胶带做成网格状加固，四周用胶带封住；<br>9)对冷却器进行检查、清洗：主要清理冷却器壳体、管程及封头积存的污垢；检查冷却器内部结构有无变形、断裂、松动现象；检查冷却器本身有无水垢、锈蚀、堵塞及泄漏现象；

5)将电机冷却器接地短接线拆除，并做好记号；<br>6)将电机冷却器与定子连接螺栓拆除，螺栓按顺序编号；<br>7)利用电机上方单轨吊，将冷却器电机旁空地上进行检修，冷却器下方用枕木垫平，不得影响其它维修工作的吊装和运输空间；<br>8)在电机定子顶部临时进行遮盖，便于定子线圈能够随时加热，遮盖采用一层铝箔纸、两层塑料薄膜，并用胶带做成网格状加固，四周用胶带封住；<br>9)对冷却器进行检查、清洗：主要清理冷却器壳体、管程及封头积存的污垢；检查冷却器内部结构有无变形、断裂、松动现象；检查冷却器本身有无水垢、锈蚀、堵塞及泄漏现象；

5) remove the grounding short circuit of the motor cooler and mark it;<br>6) remove the connecting bolts between the motor cooler and the stator, and number the bolts in sequence;<br>7) use the monorail crane above the motor to repair the open space beside the cooler motor, and use sleepers under the cooler to level, which shall not affect the hoisting and transportation space of other maintenance work;<br>8) cover the top of the motor stator temporarily, so that the stator coil can be heated at any time. One layer of aluminum foil paper and two layers of plastic film are used for the cover, and the cover is made into grid like reinforcement with tape, and the four sides are sealed with tape;<br>9) check and clean the cooler: mainly clean the dirt accumulated in the shell, tube side and head of the cooler; check the internal structure of the cooler for deformation, fracture and looseness; check the cooler itself for scale, rust, blockage and leakage;<br>