Exhaust Gas Recirculation Valve - Remove and Install - C3.3B Tier 4 Interim/Stage 3A
注: 请参阅技术规格 UENR0995"发动机设计"，了解非指定的发动机扭矩值。
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热的冷却液、蒸汽和碱会造成人身伤害。 在工作温度下，发动机冷却液是热的而且处在压力下。 散热器和所有到加热器的管路或发动机中都有热的冷却液或蒸汽。 与它们的任何接触都会造成严重烫伤。 只有当发动机停机且冷却系统压力盖已经冷却到可以徒手触摸时，再慢慢拆下冷却系统压力盖以释放压力。 不要试图在冷却液还热的时候去拧紧软管接头，软管会脱落而造成灼伤。 警告：冷却系统的冷却液添加剂含碱。 应避免它与皮肤和眼睛接触。 |
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在进行检验、保养、测试、调整及维修产品期间，必须小心以确保装好排放出的油液。 在打开任何舱室或解体任何储有液体的部件之前，要准备好合适的容器收集液体。 有关收集和盛接 Cat 产品上油液的适用工具和用品，请参阅专门出版物, NENG2500, "代理商维修工具目录"。 按照当地法规和要求处置所有液体。 |
- 将冷却液排放至低于废气再循环阀的液位。 拆下热屏蔽 (1)。
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图 2 g02824816 - 断开软管 (2) 和 (3)。 卸下螺栓 (4)。
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图 3 g02824896 - 断开软管 (6) 和 (7)。 拆下螺栓 (5)、废气再循环阀 (8) 和冷却器组件 (9)。
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| 图 1 | g02824663 |
- 按与拆卸相反的顺序安装废气再循环阀 (8)。
- 将软管 (7) 的阀拧紧至扭矩为
30.0 至 39.0 N·m (22.13 至 28.76 lb ft) 。
- 将软管 (7) 的阀拧紧至扭矩为
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