3408E and 3412E Engines for Caterpillar Built Machines Caterpillar


Unit Injector Wiring

Usage:

769C 01X



图 1g01672156

典型实例

(1) 后缸体接头的标识

(2) 前缸体接头的标识

(3) 气缸

(4) 飞轮壳体

(5) 发动机后端

注: 发动机的前端与飞轮壳体端相对。 发动机的左侧和右侧是指从飞轮壳体观看发动机时。 机器的前端可能不是发动机的前端。 机器的前端不应用作确定发动机方向的参考。




图 2g01672158

缸盖顶视图

(8) 衬套。 (13) 飞轮壳体。 (14) 曲轴的中心线。

(9) 用清洁的发动机机油稍微润滑 O 形密封圈和孔。

  1. 各气门盖下,两个气缸盖使用一个发动机线束组件。

  1. 白色接头 (6) 标记有 "F" (7) 。 将白色接头 (6) 组装到前排气缸上的喷油器线束中。 发动机左侧上的前排气缸号为 1、5 和 9。 发动机右侧上的前排气缸号为 2、6 和 10。

  1. 后接头 (12) 标记有 "R" (11) 。 将黑色接头 (12) 组装到后排气缸上的喷油器线束中。 发动机左侧上的后排气缸号为3、7 和 11。 发动机右侧上的后排气缸号为4、8 和 12。

  1. 将螺母 (10) 拧紧至扭矩为 2.50 ± 0.25 N·m (22 ± 2 lb in)。

注: 气缸号 9、10、11 和 12 不适用于 8 缸发动机。

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