3524B Engines for Off-Highway Trucks Caterpillar


Too Much Valve Lash

Usage:

3524B 1AW

可能的原因

  • 摇臂

  • 润滑不足

  • 摇臂磨损

  • 气门桥磨损

  • 推杆磨损

  • 气门挺杆磨损

  • 凸轮轴磨损

  • 气门杆磨损

  • 气门间隙不当

  • 摇臂轴固定螺栓松动

  • 气门弹簧磨损

  • 气门座

建议措施

摇臂

检查摇臂调整螺钉的锁紧螺母是否正确安装。 如果摇臂调整螺钉的锁紧螺母松动,请调节气门间隙。

检查摇臂有无磨损迹象。 如果磨损情况严重,请安装新的零件或摇臂。 调整气门间隙。

润滑不足

检查气门室的润滑情况。 检查喷油器挺杆与摇臂按钮之间有无充分润滑。

气门桥磨损

检查气门桥有无磨损迹象。 调整和/或更换气门桥。 如果磨损情况严重,请安装新的零件。 调整气门间隙。

推杆磨损

检查推杆有无磨损迹象。 如果磨损情况严重,请安装新的推杆。 调整气门间隙。

气门挺杆磨损

清洁气门系。 安装新的气门挺杆。

凸轮轴磨损

检查凸轮轴有无磨损。

气门杆磨损

检查气门杆有无磨损迹象。 检查气门是否可灵活地活动。 检查气门杆有无弯曲。 调整气门间隙。

摇臂轴固定螺栓松动

修理或更换摇臂轴的固定螺栓。

气门弹簧磨损

检查气门弹簧有无损坏或磨损迹象。 如果磨损情况严重,请安装新的弹簧。 调整气门间隙。

气门座

检查气门座有无磨损迹象。 如果磨损情况严重,请安装新的气门座。 调整气门间隙。

Caterpillar Information System:

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