773E, 773F, 775F, 777E, and 777F Off-Highway Truck Chassis Electronic Control System Caterpillar


Transmission Clutch - Calibrate

Usage:

773E DJS

变速箱离合器接合压力标定(利用 Caterpillar 电子技师)

利用 ET 标定变速箱离合器压力。 执行该步骤以补偿变速箱部件的变化。

注: 变矩器锁定离合器标定步骤在 7 个变速箱离合器标定步骤期间执行。

下列情况下需要进行标定:

  • 代理商向客户交付前。

  • 更换变速箱 ECM 后

  • 更换或维修任何 ECPC 阀或主安全阀后

  • 更换或重装变速箱或变矩器后

  • 更换变速箱控制充油泵后

  • 换档质量下降

开始标定步骤前,变速箱 ECM 必须检测下列条件:

  1. 停车制动器接合。

  1. 行车制动器被释放。

  1. 发动机转速为低怠速(约 700 rpm)。

  1. 将档位选择器置于停车位置。

  1. 变速箱油温高于 70 °C (158 °F) 和低于 85 °C (185 °F)。

  1. 变速箱输出转速(TOS)为 0 rpm。

  1. 不存在激活的离合器电磁阀诊断代码。

  1. 不存在激活的变速箱或变矩器转速传感器诊断代码。

  1. 不存在激活的变速箱或变矩器温度传感器诊断代码。

如果在标定中未满足其中的任何条件,步骤将立即中止。

保持压力标定需要用于测量离合器中实际压力的压力表。 可能的情况下,应采用数据视图诊断工具。 开始标定步骤前,应安装 8 个压力表。 变速箱 ECPC 阀测压口位于变速箱盖上,锁定离合器(LUC)ECPC 位于变矩器箱体上。




图 1g01283296

ET 标定屏幕

利用 Cat ET 标定变速箱离合器压力。 从 Cat ET 中的维修菜单选择 "CALIBRATION(标定)"选项。 遵循提供的说明。 利用 Cat ET 增大离合器各自压力。 利用 Cat ET 减小离合器各自压力。 可在压力表上查看压力变化。

Caterpillar Information System:

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