390F Excavator Machine System Caterpillar


Operational Checks

Usage:

390F FEH
操作检查可用来查找系统中的泄漏和工作不正常的部件。 杆移动的速度或马达的扭矩可用来检查油缸、马达和泵的状况。

执行下列操作检查,以便诊断和排除有关机器的液压回路和部件的问题。

应在以下条件下执行下述操作检查:

  • 发动机转速旋钮 "10"

  • AEC 开关 OFF

  • 高功率 (HP) 模式

注: 应在液压油温为 55° ± 5°C (131° ± 9°F) 时执行以下操作检查。

  • 测试和调整, "发动机性能 - 测试(发动机转速)"

  • 测试和调整, "在平地上行驶 - 测试"

  • 测试和调整, "在平地上行驶 - 测试(可选测试)"

  • 测试和调整, "自动行驶速度控制 - 测试"

  • 测试和调整, "机器在斜坡上的沉降 - 检查"

  • 测试和调整, "在平地上的回转速度和回转过量 - 检查"

  • 测试和调整, "在斜坡上的回转速度和回转漂移 - 检查"

  • 测试和调整, "油缸沉降 - 检查(空载铲斗)"

  • 测试和调整, "油缸沉降 - 检查(负载铲斗)"

  • 测试和调整, "油缸速度 - 检查"

操作检查所用的表中列出的技术规范是经计算的平均值。 由于机器配置和发动机转速不同,这些数值也会不同。 表 1 列出了为获得这些规格而使用的机器配置。

参考有关发动机转速规格,请参阅测试和调整, "发动机性能 - 测试(发动机转速)"。

表 1
机器配置    
销售型号     动臂     斗杆     铲斗    
390F L     总则     R4.4     HB4.6GD    

Caterpillar Information System:

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