對扭力彈簧、回位彈簧及止轉(zhuǎn)彈簧的彈力進(jìn)行檢查,若彈力不足,則應(yīng)進(jìn)行更換彈簧。止轉(zhuǎn)彈簧位于啟動齒輪環(huán)槽口,當(dāng)啟動齒輪與中間齒輪進(jìn)入嚙合后,隨著啟動踏桿的運(yùn)動,止轉(zhuǎn)彈簧會緊緊夾住啟動齒輪環(huán)槽,使兩者之間產(chǎn)