在农机维修中 ,安装或拆卸零件时 ,不少部位需要用手锤敲击 ,但敲击方式各有讲究 ,否则易损坏零件。（１）拆卸锈蚀较严重的螺栓 :首先清除螺栓上面的锈垢 ,并用适量的汽油或柴油浸泡１０小时左右 ,然后用０．９ｋｇ 的手锤在锈蚀的螺栓上敲打几下 ,再用合适的梅花扳手顺、逆时 In the agricultural machinery maintenance, when installing or disassembling parts, many parts need hammering with a hand hammer, but the percussion method has its own stress, otherwise it is easy to damage the parts. (1) Demolition of more serious corrosion bolts: First clear the bolts above the rust, and with the right amount of gasoline or diesel immersion for about 10 hours, and then with a 0.9kg hand hammer on the rust bolt beat a few times, then the appropriate Plum wrench Shun, inverse time