735 and 740 Articulated Trucks Steering, Suspension, and Body Hoist Hydraulic Systems Caterpillar


Gear Pump (Hoist) - Test

Usage:

735 AWR
确保机油处于工作温度。 有关暖和机油的信息,请参见测试和调整, "一般信息"。

机器应停放在水平地面上。 将停车制动器控制器移到接合位置并将举倾控制杆移到保持位置。 关闭发动机。

如果齿轮泵有故障,则升起时间和/或降下时间可能会不正确。 如果齿轮泵有故障,则系统压力可能会不正确。




图 1g00787710

735 齿轮泵(举倾机构)位于驾驶室下方。




图 2g00787711

740 齿轮泵(举倾机构)位于驾驶室下方。

  1. 测试升起时间和降下时间。 请参阅系统操作、测试和调整, "操作检查"。

  1. 测试举倾系统的压力。 请参阅系统操作、测试和调整, "举倾系统压力 - 测试和调整"。 如果系统压力不正确且系统压力不能调整至正确值,则齿轮泵可能有故障。

  1. 如果齿轮泵因损坏而导致故障,则必须更换齿轮泵。

    请参阅拆解和组装, RENR5140, "齿轮泵(举倾机构)- 拆卸"和拆解和组装, RENR5140, "齿轮泵(举倾机构)- 安装"。

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