C3.4B Engines for Caterpillar Built Machines Caterpillar


Diesel Particulate Filter - Remove - Wall Flow Diesel Particulate Filter

Usage:

CD-44B 398

拆卸步骤

表 1
所需工具    
工具     零件号     零件描述     数量    
A     -     波纹管保护器     1    

------ WARNING! ------

在处理用过的柴油微粒滤清器或催化转化器消声器时,请配戴护目镜、手套、防护服以及经过职业安全与健康管理局(NIOSH)批准的 P95 或 N95 半面式防尘面罩。 否则可能造成人身伤害。


------ WARNING! ------

消声器、催化转化器/消声器及柴油微粒滤清器在发动机运转期间温度极高。 高温消声器、催化转化器/消声器及柴油微粒滤清器会造成严重的灼伤。 在消声器、催化转化器/消声器及柴油微粒滤清器上及其附近工作之前应留出足够的冷却时间。



注意

不要敲打柴油颗粒滤清器(DPF)组件的任何部位。 不要让任何物体接触 DPF 的内芯。 如果 DPF 的内芯损坏,必须更换组件。





    图 1g03370358

    柔性排气管组件的波纹管保护器工具 (A) 就位。

    典型示例




    图 2g03370799

    典型示例

  1. 必要时将原始设备制造商(OEM)排气管组件从出口 (6) 上拆下。 有关正确的步骤,请参阅 OEM 信息。

  1. 在 DPF (4) 和卡箍 (5) 的位置 (A), (B), (C) 和 (D) 上做临时对准标记,以确保 DPF 安装在原位。

  1. 如果 DPF 安装到飞轮壳上,将工具 (A) 安装到位置 (E) ,以保持柔性排气管组件 (12) 正确对准。

  1. 断开柔性排气管组件 (12) 。 有关正确步骤,请参阅拆解和装配, "柔性排气管 - 拆卸和安装"。

    注: 安装柔性排气管组件前,不要拆下波纹管保护器。

  1. 在柴油微粒滤清器 (DPF) (4) 上做临时标记,以显示排气流向。

  1. 将导线线束从温度传感器 (2) 的接头 (1) 上断开。

    注: 在所有接头上做临时识别标记,以便于组装。

  1. 将导线线束从温度传感器 (3) 的接头 (11) 上断开

    注: 在所有接头上做临时识别标记,以便于组装。

  1. 将压力传感器管组件 (7) 从 DPF 上断开。

    注: 在管组件上做临时识别标记,以便于组装。

  1. 将压力传感器管组件 (9) 从 DPF 上断开。

    注: 在管组件上做临时识别标记,以便于组装。

  1. 将螺栓 (8) 从卡箍 (5) 上拆下。 从 DPF 上拆下卡箍,以便拆下 DPF。

  1. 将适当的起吊设备连接到 DPF 上。 DPF 的重量约为 15 kg (33 lb)。

  1. 使用适当的起吊设备将 DPF 从支架 (10) 上拆下。

  1. 如有必要,拆下温度传感器 (2) 和 (3) 。 有关正确步骤,请参阅拆解和装配, "温度传感器 (DPF) - 拆卸和安装"。

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