拖拉机操作中十忌

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拖拉机操作中的十忌一、忌机车起动前不摇车一般来说,发动机是在低温和润滑条件差的情况下起动的,尤其在机车停放时间较长或冬季气温较低的情况下,由于相互配合的零件(曲轴颈与轴瓦、活塞环与缸简等)在相对运动时,处于缺少润滑油的于摩擦状态,直接起动不仅阻力大,...
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