C4.4 Engines for Caterpillar Built Machines Caterpillar


Solenoid Valve (DEF Heater Coolant) - Remove and Install

Usage:

AP500F 449

拆卸步骤

  1. 将蓄电池断路开关转到断开位置。

  1. 请参阅原始设备制造商 (OEM) 信息,了解电磁阀的位置。

  1. 将冷却系统中的冷却液排入适当的容器直至液位低于电磁阀,以便保存或废弃。 有关正确的排放步骤,请参阅操作和保养手册, "冷却系统冷却液 - 更换"。



    图 1g03727977

  1. 将线束组件从电磁阀 (2) 的接头 (3) 上断开。

  1. 松开软管卡箍 (5) ,然后将软管组件 (4) 从电磁阀 (2) 上拆下。

  1. 松开软管卡箍 (6) ,然后将软管组件 (7) 从电磁阀 (2) 上拆下。

  1. 拆下螺栓 (1) ,然后拆下电磁阀 (2) 。

安装步骤

  1. 确保电磁阀无磨损或损坏。 如果电磁阀的任何部件磨损或损坏,整体更换电磁阀。



    图 2g03727977

  1. 安装电磁阀 (2) 后安装螺栓 (1) 。 拧紧螺栓至扭矩为 22 N·m (195 lb in)。

  1. 将软管组件 (4) 安装到电磁阀 (2) 上。 将软管卡箍 (5) 拧紧至扭矩为 7 N·m (62 lb in)。

  1. 将软管组件 (7) 安装到电磁阀 (2) 上。 将软管卡箍 (6) 拧紧至扭矩为 7 N·m (62 lb in)。

  1. 将线束组件连接到电磁阀 (2) 的接头 (3) 上。

  1. 加注冷却系统至正确液位。 请参阅操作和保养手册, "冷却系统冷却液 - 检查"和操作和保养手册, "冷却系统冷却液 - 更换"以了解正确的加注步骤。

  1. 将蓄电池断路开关转到接通位置。

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