CS44B Vibratory Soil Compactor Machine Systems Caterpillar


Leveling Blade System Troubleshooting

Usage:

CP44B GTT

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

机器突然动作,会导致人员伤亡。

机器突然移动,会对机上或机器近处的人员造成伤害。

为避免伤亡事故,开动机器之前,确保机器周围无人及没有各种障碍物。


------ 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。

卸下机具和其油路之前,必须先把机具放到地面上,让油先冷却,才可进行工作。 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。



注意

在检查、保养、测试、调整及维修产品时,请小心确保盛接油液。 在打开任何舱室或拆卸任何含有油液的部件前,请准备好盛接液体用的适当容器。


运行检查

找平铲刀的运行检查可用于诊断性能不良。 也可以利用运行检查查找液压系统内的泄漏。

找平铲刀系统可能的故障原因

故障

齿轮泵发出噪音,铲刀油缸连杆移动不顺畅。

可能的原因

  • 液压回路中有空气。

  • 齿轮泵磨损。

  • 齿轮泵进口侧的机油管路连接松动。

  • 液压油油位过低。

  • 液压油的粘度不当。

  • 转向泵中的流量优先阀有故障。

故障

铲刀不能平滑移动或铲刀根本不移动。

可能的原因

  • 铲刀油缸内部泄漏

  • 铲刀应在所有发动机转速下移动。

  • 铲刀控制阀的连杆有故障。

  • 铲刀控制阀安全阀有故障。

  • 铲刀枢轴点存在卡滞。

  • 转向泵中的流量优先阀有故障。

  • 铲刀控制阀故障。

故障

机油温度过高。

可能的原因

  • 液压油油位过低。

  • 液压油的粘度不当。

  • 机油中混杂空气。

  • 安全阀损坏或安全阀调整不当。

  • 液压管路或其中一个部件阻塞。

故障

当操纵杆处于保持位置时,铲刀的位置出现沉降。

可能的原因

  • 控制阀体和滑阀磨损。

  • 控制阀中的定心弹簧损坏。

  • 油缸内的密封泄漏(活塞密封圈机油旁通)。

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