该故障现象是:雨天行驶中打开雨刮器开关。雨刮缓慢刮二下后就不动了,此时触摸电机发热。 拆检雨刮永磁电机:碳刷、碳刷弹簧都正常,电机转子无脱焊、烧焦变色现象,转子各轴承位置也不缺油,装复电机后,单独试验电机,电机运转时的转速正常。 检查拉杆机构。拆下右边拉杆后,用手转动右边芯轴,几乎转不 The symptoms are: open the wiper switch during rainy days. After the wiper is scraped slowly, it will not move, and the motor will be heated at this moment. Inspection wipers permanent magnet motor: carbon brushes, brush springs are normal, the motor rotor without desoldering, scorch discoloration phenomenon, the rotor position of the bearings are not lack of oil, install the motor, a separate test motor, the motor is running Speed ​​is normal. Check the lever mechanism. Remove the right lever, the right hand spindle rotation, almost no turn