980G Wheel Loader Braking System Caterpillar


Brake System Air - Purge

Usage:

980G 2KR

------ WARNING! ------

在以下步骤中,如果不是两人同时操作,可能造成人身伤亡。



注意

在检验、保养、测试、调整及维修产品时,务必留心,确保液体盛装在容器中。 在打开任何腔室或拆解任何储有液体的部件之前,要准备好用合适的容器收集液体。

有关适合收集和盛接卡特彼勒产品上液体的工具及用品,参考专门出版物, NENG2500, "卡特彼勒工具和修理车间设备指南"。

按照当地法规和指令处置所有液体。


机器准备

通过完成正在维护机器的维修手册模块测试和调整, "机器故障诊断与排除准备工作"指定的步骤,执行机器测试准备工作。

测试步骤




图 1g00477660

后行车制动器排气螺钉的典型位置

(1) 排气螺钉。

注: 各轴有两个排气螺钉。

前行车制动器的两个排气螺钉的位置相似。

行车制动器的排气螺钉位于相应轴壳体的顶端。

注: 每次对一个行车制动器进行该步骤。

  1. 检查液压油箱的油位。 通过空气排除步骤确保维持液压油箱中的正常油位。

  1. 起动发动机。 使油压增至切断压力。

  1. 将直径为 6.4 mm (.25 in) 的透明油管一端固定于一个空气净化螺钉上。 将油管的另一端置于合适的容器中,以收集液压油。 您还可将管引导回液压油箱。 松开排气螺钉 (1) 。

  1. 操作员应缓慢踩下制动踏板。 在整个步骤 5 中将制动踏板固定到此位置。

  1. 当液压油流过油管时,在机油中查看是否有气泡。 让油流入容器,直到看不到气泡为止。 随后上紧排气螺钉 (1) 。 松开制动踏板。

  1. 对其它每个行车制动器进行该步骤。 确保拧紧各排气螺钉 (1) 。

  1. 如有必要,注满液压油箱。

注: 在操作开始的几个小时内,如果制动踏板不稳固,再次进行该步骤。

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