Ignition System Timing - Check/Adjust
如果更换了 ECM 且没有使用复制配置功能，则必须进行发动机正时标定。 另外，如果未在发动机的前齿轮系上进行该工作，则必须标定正时。
通过 Cat 电子技师（ET）将偏置值编程到 ECM 中。
使用发动机转速 / 正时传感器来检测凸轮轴的上止点。 提供该信号给 ECM。
执行测试和调整, KENR6870, "正时 - 标定"中描述的步骤。
Caterpillar Information System:
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