PM620, PM622, PM820, PM822 and PM825 Cold Planer Propel Systems Caterpillar


Propel System Troubleshooting

Usage:

C-10 3CS

行驶系统故障诊断与排除

故障:履带在任一方向上均不移动。

可能的原因:

  1. 液压油油位过低。

  2. 行驶控制装置出现故障。

  3. 行驶泵的充油压力低。

  4. 系统压力过低。

  5. 多功能阀出现故障。

  6. 电子排量控制(EDC)故障。

  7. 行驶系统超出安全阀设置。

    发动机转速较低(低于 2100 rpm)时,负载控制处于 AUTO(自动)位置。

  8. 行驶泵互锁阀出现故障。

故障:履带只在一个方向上移动。

可能的原因:

  1. 行驶控制装置出现故障。

  2. 多功能阀出现故障。

  3. 控制阀出故障。

  4. 行驶泵伺服弹簧中的机油受到污染。

故障:机器不能处于空档位置。

可能的原因:

  1. 行驶控制装置出现故障。

  2. 控制阀出故障。

  3. 行驶泵出现故障。

  4. 电子排量控制(EDC)未正确调整。

故障:系统过热。

可能的原因:

  1. 液压油油位过低。

  2. 液压油冷却器堵塞或脏污。

  3. 吸油滤清器堵塞。

  4. 多功能阀出现故障。

  5. 系统压力过高。

  6. 一个或多个系统中负载过量。

  7. 管路中存在阻塞。

  8. 机油冷却器旁通阀故障。

  9. 充油压力过低。

故障:行驶系统响应迟缓。

可能的原因:

  1. 充油压力过低。

  2. 控制阀出故障。

  3. 机油未处于工作温度。

  4. 安全阀设定值不正确。

故障:充油压力在空档及前进和后退操作中过低。

可能的原因:

  1. 行驶系统充油安全阀故障。

故障:充油压力在前进及后退操作中过低。

可能的原因:

  1. 行驶马达冲洗阀出现故障。

故障:转速控制装置设为零时机器向任一方向爬行。

可能的原因:

  1. 泵空档位置未正确调整。

  2. 电路中有故障。

  3. 停车制动器出故障。

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