挖掘机发动机拉缸的原因及预防事项

2026-02-10 网络整理佚名1540

Key Point:发动机拉缸的原因及预防：发动机拉缸，是指气缸内壁在活塞环的运动范围内出现明显的纵向机械划痕和刮伤，严重时发生熔着性磨损，造成发动机启动困难或者自行熄火的故障。

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