69D and 769D Off-Highway Trucks and 771D Quarry Truck Caterpillar


Magnetic Switch (Prelubrication Relay) - Remove and Install

Usage:

769D 5SS

拆卸步骤




图 1g00481084

位于机架组件上的驾驶室下方

  1. 在电缆组件和发动机线束组件上作识别标记,以便于安装。

  1. 将两只螺母 (1) 、两只锁紧垫圈和两只硬垫圈从磁力开关组件 (3) 上拆下。

  1. 将电缆组件从磁力开关组件 (3) 的两侧断开。

  1. 将两只螺母和两只锁紧垫圈从磁力开关组件 (3) 上拆下。

  1. 将发动机线束组件 (2) 从磁力开关组件 (3) 上断开。

  1. 将四只螺栓 (4) 和硬垫圈从磁力开关组件 (3) 上拆下。 拆下磁力开关组件 (3) 。

安装步骤




图 2g00481084

位于机架组件上的驾驶室下方

  1. 安装之前先确认磁力开关组件的所有部件清洁无异物。

  1. 检查所有部件是否磨损,必要时更换部件。

  1. 将磁力开关组件 (3) 放置到机架上。 将四只螺栓 (4) 和硬垫圈安装到磁力开关组件 (3) 上。

  1. 将发动机线束组件 (2) 连接到磁力开关组件 (3) 。

  1. 将两只锁紧垫圈和两只螺母安装到磁力开关组件 (3) 上。

  1. 在各接线柱的螺纹上涂抹 4C-4030 螺纹固定剂 。 将电缆组件连接至磁力开关组件 (3) 的两侧。

  1. 将两只硬垫圈、两只锁紧垫圈和两只螺母 (1) 安装到磁力开关组件 (3) 上。 将螺母 (1) 拧紧至扭矩 11.3 ± 1.1 N·m (100 ± 9.7 lb in)。

Caterpillar Information System:

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