385C Material Handler Hydraulic System Caterpillar


Cylinder Speed - Check

Usage:

385C L MH WAW
注: 发动机转速和 / 或测试期间所用的机器配置可能对测试结果产生影响。 有关此项测试所用的发动机转速,请参阅测试和调整, "发动机性能 - 测试(发动机转速)"。 有关此项测试所用的机器配置,请参阅测试和调整, "操作检查"。

注: 执行操作检查之前,必须根据卸压阀压力技术规范设定卸压阀压力。 请参阅测试和调整, "技术规范"。

  1. 执行下列步骤,以便测试动臂油缸的工作速度。



      图 1g01726448

      (A) 伸出测试

      (B) 回缩测试

    1. 将机器停放在平地上。

    1. 将斗杆油缸完全伸出。

    1. 将斗杆安置在地面上。 使用秒表测量动臂油缸完全伸出所需的时间。

    1. 使动臂油缸处于完全伸出的位置。 使用秒表测量动臂油缸完全伸出所需的时间。

    1. 有关动臂油缸的工作速度,请参阅表 1中的规格。

  1. 执行下列步骤,以便测试斗杆油缸的工作速度。



      图 2g01726451

      (A) 伸出测试

      (B) 回缩测试

    1. 将机器停放在平地上。

    1. 安置动臂,使抓斗与地面保持距离。

    1. 将斗杆油缸收回。 使用秒表测量斗杆油缸完全伸出所需的时间。

    1. 将斗杆油缸伸出。 使用秒表测量斗杆油缸完全收回所需的时间。

    1. 有关斗杆油缸的工作速度,请参阅表 1 中的技术规范。

表 1
油缸工作速度(秒)    
项目     新     翻新     维修极限    
动臂     加长杆     5.8 ± 0.5     7.5 (1)     8.7 (1)    
收回 3.1 ± 0.5     4.0 (1)     4.7 (1)    
斗杆     加长杆     5.1 ± 0.5     6.6 (1)     7.7 (1)    
收回 3.2 ± 0.5     4.2 (1)     4.8 (1)    
( 1 ) 最大

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