Aftertreatment SCR System Dosing - Test
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所需工具 | |||
工具 | 零件号 | 零件描述 | 数量 |
A | 441-0451 | 测试套件 (DEF) | 1 |
470-7263 | 盖接头 | 1 |
- 将柴油机排气处理液(DEF)喷油器从清洁排放模块(CEM)上拆下。 有关正确的步骤,请参阅拆解和组装, " DEF 喷油器和安装件 - 拆卸和安装"。
注: 将柴油机排气处理液管路和电气接头连接到 DEF 喷油器上。
Show/hide table图 1 g03370846 用螺栓将 DEF 喷油器固定到测量容器盖上 Show/hide table图 2 g03370910 工具 (A) 的典型示例 - 从工具 (A) 组装 DEF 收集容器。 将 DEF 喷射器连接到收集容器的盖上。
- 将钥匙开关转到接通位置。
- 连接电子维修工具。
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图 3 g03370860 典型示例 - 单击主菜单中的 "Diagnostics(诊断)",然后单击 "Diagnostic Tests(诊断测试)"。
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图 4 g03370869 典型示例 - 单击 "DEF Dosing System Accuracy Test(DEF 喷射系统精度测试)"以继续。
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图 5 g03370974 典型示例 Show/hide table图 6 g03370954 典型示例 - 单击 "Start(开始)"执行测试。
注: 使用 DEF 喷油器喷射检查喷射形状。 喷油器喷射形状应呈细雾状锥形。
注: 该测试应运行 5 分钟。 如果测试仅运行 1 分钟,则再重复该测试 四次。
- 完成测试后,检查测量容器,以检查容器中 DEF 量。 按照当地法规和要求处置收集的 DEF。
喷射测试期间喷洒的 DEF 的技术规格 ... 105 mL 至 130 mL
- 重新安装 DEF 喷射器组件。 有关正确的步骤,请参阅拆解和组装, " DEF 喷油器和安装件 - 拆卸和安装"。
- 使用电子维修工具执行"后处理系统功能测试"。
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