C11 and C13 On-Highway Engines Caterpillar


Exhaust Manifold

Usage:

C13 JAM



图 1g01174664

3 段式排气歧管(典型示例)

(1) 排气歧管密封垫

(2) 填料材料

(3) 护罩

(4) 螺柱

(5) 隔套

(6) 垫圈

(7) 螺线锁紧螺母

(8) 螺柱

(1) 排气歧管密封垫

注: 排气歧管密封垫有锁键。 标识应向下指向油底壳。

使用以下步骤安装 3 段式排气歧管到缸体。


注意

过多使用密封剂可能导致部件损坏。

为了避免零件损坏,仅使用适量的密封剂。


  1. 安装面应干净而干燥。 另外,安装面不应有任何异物。

  1. 组装之前,在排气歧管凹头端上涂抹发动机机油。 将 2P-2333 高温密封胶 涂抹到排气歧管公接口的外径上。 不要在公接口涂抹密封胶。 从组装好的接头上去掉多余的密封胶。

(2) 放置填料,使填料的分割线处在 12 点钟的位置。

(3) 放置护罩,使护罩间隙处在 3 点种和 9 点种的位置。 安装护罩时不要挤压填料。 如图所示放置好排气卡箍1。

使用以下步骤安装排气管中接头处的护罩和卡箍。

  1. 螺栓扭矩为 5 ± 1 N•m (44 ± 9 lb in)

  1. 再次拧紧两个卡箍至 16 ± 1 N·m (142 ± 9 lb in)。

  1. 热实验后,再次拧紧两个卡箍至 16 ± 1 N·m (142 ± 9 lb in)。

(4) 将 5P-3931 防咬合剂 涂抹到螺柱螺纹上。 安装螺柱,使字母 "X" 朝外。 将螺柱拧紧至以下扭矩。 ... 35 ± 5 N·m (26 ± 4 lb ft)

(5) 隔套

(6) 垫圈

(7) 螺线锁紧螺母




图 2g00566145

排气弯管螺栓螺旋锁紧螺母的拧紧顺序

(8) 将 5P-3931 防咬合剂 涂抹到螺柱螺纹上。 按照图 2 的数字顺序依次将锁紧螺母拧紧至以下扭矩。 ... 55 ± 10 N·m (41 ± 7 lb ft)

注: 启动或运行发动机之前,使排气歧管接头处的密封剂在空气中干燥 24 小时。

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