PL87 Pipelayer Power Train Caterpillar


System Pressure - Release

Usage:

PL87 KKJ

压力释放步骤

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

滚热的油或液压油的压力会对人员造成伤害。

发动机停机之后,液压油的压力仍会保留在液压系统里。 对液压系统进行维修之前,如果不事先释放压力,可能会造成严重伤害。

卸下液压系统的部件或管路时,确保所有的作业机具都已降到地面上,而且液压油温度已冷。 只能在发动机停机,并且加注口盖冷却到可以用徒手触摸时才能卸下加注口盖。


  1. 起动发动机。

  1. 将机器移到平整的水平路面上,远离其他机器和人员。

  1. 确保所有液压功能都能正常工作。

  1. 将所有附件降至地面上。

  1. 将配重置于存放位置。

  1. 机器上仅允许停留一位操作员。 其它人员远离机器。

  1. 接合停车制动器。

  1. 停止发动机。



    图 1g02630839

  1. 安装配重锁止螺栓 (1) ,如图所示。

    注: 此时不要起动发动机。

  1. 将点火钥匙转到通开位置。



    图 2g02615239

  1. 确保液压切断开关 (3) 处于允许操作机具的位置。

  1. 将液压操纵杆 (2) 移动到可以释放液压系统压力的所有位置。



    图 3g01355466

  1. 按下单向阀 (4) 以释放液压油箱压力。

  1. 此时已经释放了系统压力,所以可以拆卸管路和部件。

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