120M, 12M, 140M, 14M, 160M and 16M Motor Graders Secondary Steering System Caterpillar


Control Manifold (Steering Backup) - Test

Usage:

12M B92

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

机器的蓄电池必须充电正常,辅助转向电气系统必须正常。充电不足或蓄电池、蓄电池单元或电路有缺陷时,会使辅助转向失效而且可能导致人员伤害和/或机器损坏。



注意

一旦辅助转向系统被启动,它将维持不超过 2 分钟。 这段时间足够安全地使机器转向至停止。 机器停止时,将发动机起动开关转至断开 位置,以关闭辅助转向。 长时间使用辅助转向系统会使电马达过热,而导致部件损坏。


简介

测试用于检查如果主转向电磁阀故障,辅助转向电磁阀是否能够功能正常。

所需工具

该测试步骤不需要用到工具。

机器准备

  1. 开始步骤 2 前,完成测试步骤测试和调整, "电磁开关(辅助转向电磁阀)- 测试"以确认辅助转向泵功能正常。

  1. 机器必须静止。 将机具锁止开关按到接通位置。

  1. 启用停车制动。 钥匙应在接通位置。 启动并运转发动机。

测试步骤

  1. 启动并运转发动机。



    图 1g01374422

    (1) 辅助转向测试开关

  1. 按下辅助转向测试开关 (1) 。

  1. 在辅助转向测试开关 (1) 被保持在测试位置的同时,用左手操纵手柄提供下列转向输入信号:

    • 左转向

    • 转至中间

    • 右转向

    验证前车轮的移动,使其与每次的转向输入信号一致。

    注: 辅助转向泵的运转周期最长为 10 秒钟。

  1. 测试期间,辅助转向的警报指示器应保持琥珀色。 如果测试不成功,辅助转向的警报指示器将呈现红色。 确认没有出现转向故障或事件。

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