G3500 Engines Caterpillar


Exhaust Bypass Valve

Usage:

G3508 2TJ


对排气旁通阀进行调整,以控制满负荷运转时流到涡轮增压器涡轮机的排气。 满负荷运转时推荐的节气门角度大约为70度。 使用下述程序来调整排气旁通阀:



    图 1g00814530

    排气旁通阀的侧视图

    (1) 螺塞

    (2) 锁母

    (3) 调整螺钉

  1. 拆下螺塞 (1) 和密封。

  1. 松开锁母 (2) 。 顺时针转到调整螺母 (3) 大约4圈,以便解除排气旁通阀的功能。 小心不要将该螺钉拧紧得太远。

  1. 按照专门说明书, SEHS9769, "G3500发动机安装和初次启动程序"来调整发动机。

  1. 转动调整螺钉 (3) 来调整排气旁通量,以使满负荷运转时的节气门角度大约为70度。

  1. 当运转情况负荷要求时,拧紧螺母 (2) 至扭矩为14 ± 3 N·m (10 ± 2 lb ft)。

  1. 安装密封和螺塞 (1) 。

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