3408E and 3412E Engines for Caterpillar Built Machines Caterpillar


Cylinder Head

Usage:

D10N 2YD



图 1g01628239

注: 组装前,先用清洁发动机机油润滑缸盖螺栓的螺纹。

使用以下步骤拧紧缸盖螺栓:

  1. 按数字次序拧紧螺栓 1 到螺栓 14 至 270 ± 25 N·m (200 ± 18 lb ft)。

  1. 再次按数字次序拧紧螺栓 1 到螺栓 14 至 450 ± 20 N·m (330 ± 15 lb ft)。

  1. 最后按数字次序拧紧螺栓 1 到螺栓 14 至 450 ± 20 N·m (330 ± 15 lb ft)。

  1. 将摇臂组件安装到缸盖上。

  1. 按数字次序拧紧螺栓 15 到螺栓 26 至 270 ± 25 N·m (200 ± 18 lb ft)。

  1. 再次按数字次序拧紧螺栓 15 到螺栓 26 至 450 ± 20 N·m (330 ± 15 lb ft)。

  1. 最后按数字次序拧紧螺栓 15 到螺栓 26 至 450 ± 20 N·m (330 ± 15 lb ft)。

    注: 缸盖螺栓拧紧至最终扭矩后才拧紧螺栓 27 至螺栓 39。

  1. 按数字次序拧紧螺栓 27 到螺栓 39 至 47 ± 7 N·m (35 ± 5 lb ft)。

(1) 拔梢锁紧双头螺柱的扭矩 ... 35 ± 5 N·m (26 ± 4 lb ft)




图 2g01628738

如配备,使用以下步骤将燃油泵支架和正时盖支架拧紧至缸盖。

注: 安装前,使用清洁发动机机油润滑螺栓的螺纹。

注: 缸盖螺栓拧紧至最终扭矩后才拧紧螺栓。

(2) 采用以下步骤拧紧螺栓:

  1. 将燃油泵支架定位到缸盖中的螺栓孔上。 穿过支架安装缸盖螺栓 (3) 。 手动拧紧螺栓。

  1. 从燃油泵上拆下两颗螺栓以安装螺栓 (2) 。

  1. 将燃油泵对准燃油泵支架并安装螺栓 2。 用标准的扭矩拧紧螺栓。

  1. 拧紧螺栓 (3) 至扭矩为 44 ± 7 N·m (32 ± 5 lb ft)。

(4) 杯形螺塞在各缸盖前后侧中的安装深度 ... 4.3 ± 0.8 mm (0.17 ± 0.03 in)

(5) 杯形螺塞在各缸盖前后侧中的安装深度 ... 2.5 ± 0.8 mm (0.10 ± 0.03 in)




图 3g01391843

(A) 新缸盖的高度 ... 112.78 ± 0.25 mm (4.440 ± 0.010 in)




图 4g01391847

(D) 杯形螺塞装入缸盖中的深度如下。 ... 4.5 ± 0.5 mm (0.18 ± 0.02 in)

(E) 杯形螺塞装入缸盖中的深度如下。 ... 2.0 ± 0.5 mm (0.08 ± 0.02 in)




图 5g01678174

注: 安装喷嘴适配器前,先在 O 形密封圈 (7) 和缸盖孔中涂抹皂液(40% 固体)。

注: 安装前,在喷嘴适配器的螺纹上涂抹 4C-5599 防粘结剂 。

(6) 将喷嘴适配器拧紧至下列扭矩。 ... 200 ± 14 N·m (150 ± 10 lb ft)

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