3500B Locomotive Engines Caterpillar


Air Inlet and Exhaust Lines

Usage:

3508B 5PS



图 1g01984493

发动机右视图




图 2g01614673

螺栓拧紧顺序

(1) 组装前,用 5P-3975 橡胶润滑剂 略微润滑 O 形密封圈孔。

(2) 采用以下步骤紧固后冷器组件的螺栓:

  1. 将密封组装到后冷器芯上。

  1. 临时用胶带将底部密封固定在后冷器上。 不要使用粘接剂、硅润滑剂或任何其它润滑剂来固定密封。

  1. 将装了密封的后冷器组装到进气歧管上。

  1. 检查底部密封,以确保密封正确座入凹槽内。

  1. 安装后冷器盖。

  1. 检查顶部密封,以确保密封正确座入凹槽内。

  1. 安装盖螺栓。 用手拧紧盖螺栓。

  1. 按数字顺序将螺栓拧紧至 24 ± 6 N·m (212 ± 53 lb in) 的扭矩。 请参阅插图 2。

  1. 再次按数字顺序将螺栓拧紧至 24 ± 6 N·m (212 ± 53 lb in) 的扭矩。 请参阅插图 2。

  1. 拆下胶带。

注: 组装前,用 4C-5599 防粘结剂 润滑螺塞螺纹。

(3) 螺塞的扭矩 ... 20 ± 5 N·m (177 ± 44 lb in)

(4) 螺栓的扭矩 ... 120 ± 20 N·m (89 ± 15 lb ft)

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