3408E and 3412E Engines for Caterpillar Built Machines Caterpillar


General Information

Usage:

769C 01X
3408E 发动机为 65 度 V-8 布局。 此发动机采用 137.2 mm (5.40 in) 的缸径。 此发动机采用 152.4 mm (6.00 in) 的冲程。 缸径和冲程提供 18.0 L (1099 in3) 的总排量。

3412E 发动机为 65 度 V-12 布局。 此发动机采用 137.2 mm (5.40 in) 的缸径。 此发动机采用 152.4 mm (6.00 in) 的冲程。 缸径和冲程提供 27.0 L (1648 in3) 的总排量。

液压电子式喷油器系统(HEUI)消除了泵-管路系统内使用的许多机械部件。 电子控制和液压驱动还提高了正时控制和喷油压力控制的能力。 通过精确控制单体喷油器正时获得正时提前。 发动机转速通过调整喷油持续时间来控制。 专用转速-正时轮通过为电子控制模块(ECM)提供信息,进行气缸位置和发动机转速的监测。

发动机具有内置诊断,以便确保所有部件正常工作。 如果一个系统部件出现故障,"检查发动机"指示灯会提醒操作员这个状况。 电子维修工具可用于读取出针对有故障的部件或状况的数字编码。 间歇性故障也会记录和储存在存储器内。

起动发动机

发动机 ECM 将自动提供起动发动机所需的正确燃油量。 盘车起动发动机时不要踩下油门。 如果发动机 20 秒内没有起动,应松开起动开关。 再次使用起动马达前,让起动马达先冷却两分钟。

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