Catalyst (SCR) - Remove and Install
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高温发动机部件可能导致灼伤。 进行发动机保养之前让发动机和部件冷却下来。 |
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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。 |
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| 所需工具 | |||
| 工具 | 零件号 | 零件描述 | 数量 |
| A | 399-9725 | 把手组件 | 1 |
| B | Loctite™ 镍防咬合剂 | - | |
- 将适当的起吊设备连接到盖组件 (3) 上。 盖组件的重量约为
24.65 kg (54 lb) 。 - 拆下 52 个螺栓 (1)，然后拆下 4 个板 (2)。
- 拆下盖 (3)。
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图 3 g06162597 - 拆下螺栓 (4) 后拆下挡圈 (5)。
注: 报废所有密封垫和固定件。 这些零件为一次性零件。
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图 4 g06163271 - 在支架 (7) 上安装工具 (A) 并连接适当的起吊设备。 催化器的重量约为
24kg (53lb) 。 - 拆下外催化器 (8)。
- 对内催化器重复步骤 5 和 6。
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| 图 1 | g06156156 |
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| 图 2 | g06156173 |
- 按与拆卸相反的顺序安装催化器 (SCR)。
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图 5 g06165407 - 将后密封件 (B) 安装在管 (A) 和第一个催化器组件 (C) 之间。
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图 6 g06166277 - 将前催化器密封件 (F) 安装到第一个催化器组件 (G) 上。
- 安装第二个催化器组件 (E)。
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图 7 g06163570 - 固定件组装参考。
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图 8 g06162722 - 按所示顺序将螺栓 (4) 手动拧紧至扭矩
10 ± 2 N·m (7 ± 1 lb ft) 。 - 按所示顺序将螺栓 (4) 拧紧至扭矩
55 ± 10 N·m (41 ± 7 lb ft) 。
注: 安装盖组件 (2) 和 (3) 时使用定位销，以辅助盖定位。
注: 从中间开始朝各角落拧紧盖螺栓 (1)。
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