797B Off-Highway Truck Steering System Caterpillar


General Information

Usage:

797B JSM

转向系统的电子技师屏幕




图 1g00936438

底盘 ECM 的"配置"屏幕

底盘 ECM 的"配置"屏幕显示参数列表。 如果机器上的转向系统是电子控制的,则"转向蓄能器充注系统安装"参数的"值"必须设为"已安装"。




图 2g00907835

底盘 ECM 的"超越参数"屏幕

电子技师(ET)内的另一屏幕为底盘 ECM 的"超越参数"屏幕。 如果机器上的转向系统是电子控制的,则"转向蓄能器充注电磁阀电流超越"的"值"的设置范围为 0 至 100%。 百分比代表 0 毫安至 1000 毫安之间的电流值。 如果输入 0% 作为此参数的"值",则底盘 ECM 将向转向泵的排量电磁阀发送 0 毫安的电流。 在 0 毫安时,转向泵处于最大排量和最大流量。 如果输入 60% 或更多作为此参数的"值",则底盘 ECM 将向转向泵的排量电磁阀发送 600 毫安或更大的电流。 在 600 毫安时,转向泵处于最小排量和最小流量。

注: 此时可检查转向泵高压切断阀的设置。 将"值"设为 0% 然后以高怠速操作机器。 可在屏幕顶部处观察到发动机转速和转向蓄能器压力。




图 3g00907838

底盘 ECM 的"状态"屏幕

第 6 组

"转向蓄能器充注电磁阀电流"是底盘 ECM 第 6 组"状态"屏幕上显示的其中一个参数。 如果机器上的转向系统是电子控制的,则此参数显示的"值"将从 0 更改为 65.0%。 百分比代表 0 毫安至 650 毫安之间的电流值。 如果显示 0% 作为此参数的"值",则底盘 ECM 将向转向泵的排量电磁阀发送 0 毫安的电流。 在 0 毫安时,转向泵处于最大排量和最大流量。 如果显示 65% 或更多作为此参数的"值",则底盘 ECM 将向转向泵的排量电磁阀发送 650 毫安或更大的电流。 在 650 毫安时,转向泵处于最小排量和最小流量。

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