| 2. | In the process of use , if the switching torque increases , the reason might be there is foreign body between the butterfly plate and the rubber lining , or the rubber lining has been worn , at this time , should stop for inspection , cannot forced switch 使用过程中如果出现开关力矩变大,形成的原因可能是蝶板和胶套间卡有异物,或是胶套已破损,此时应停车检查,不可强行开关。 |