C4.4 Industrial Engine Caterpillar


Piston Ring Groove - Inspect

Usage:

C4.4 444

检查活塞和活塞环

  1. 检查活塞有无磨损和其它损坏。

  1. 检查并确认活塞环能在环槽中自由移动且活塞环没有断裂。

检查活塞环间隙

  1. 卸下活塞环,清洁环槽和活塞环。



    图 1g00905732

    (1) 塞尺

    (2) 活塞环

    (3) 活塞环槽

  1. 将新活塞环 (2) 安装在活塞环槽 (3) 中。

  1. 将适当的塞尺 (1) 塞入活塞环槽 (3) 与活塞环 (2) 顶部之间来检查活塞环间隙。有关尺寸的资料,请参阅技术参数, "活塞和活塞环"。

    注: 有些活塞的顶环槽为锥形,活塞环为楔形。这种情况下,不能采用上述方法检查顶活塞环的间隙。

检查活塞环端隙




    图 2g00983549

    (1) 活塞环

    (2) 气缸环形台阶

    (3) 塞尺

  1. 清除缸孔顶部的所有积碳。

  1. 将各个活塞环 (1) 放在缸孔气缸环形台阶 (2) 的正下面。

  1. 使用适当的塞尺 (3) 测量活塞环端隙。 有关尺寸的资料,请参阅技术参数, "活塞和活塞环"。

    注: 在测量刮油环开口间隙之前,必须从环上取下螺旋弹簧。

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