IT14G Integrated Toolcarrier and 914G Wheel Loader Steering System Caterpillar


Steering System Pressure - Test

Usage:

IT14G 1WN

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

如果检查渗漏的方法不当,会造成人身伤害甚至死亡。

检查渗漏时,请务必使用木板或硬纸板作为挡板。 即使只是针孔大小的渗漏,漏出的空气或液体都能够穿透人体组织而造成严重创伤,甚至死亡。

如果液体喷射穿透进您的皮肤,必须立即找熟悉这类型创伤的医生处置。


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

为了避免机器运转过程中进行检查时造成人身伤害,确保机器上只有通过资质认证的人员。 让其他人员远离机器或在操作员的视野范围内。 确保在一个开阔的地方进行检查。


本测试用来检查转向和制动歧管阀内的安全阀是否正常工作。

表 1
所需工具    
零件号     说明     数量    
8T-0859     压力表,0 到 25000 kPa     1    
177-7860     软管组件     1    
6V-4143     连接器     2    
6V-3989     未装有阀的螺纹接头     1    



    图 1g00522583

    (1) 转向和制动歧管阀。 (2) 测压口。




    图 2g01050165



    图 3g01050166

  1. 将一个 6V-4143 连接器组件 安装到 177-7860 软管组件 的每端上。 将 6V-3989 未装有阀的螺纹接头 安装到 8T-0859 压力表 上。 压力表具有 0 到 25000 kPa (0 到 3600 psi) 的量程。 将压力表安装到 177-7860 软管组件 的一端上。 对于配有 156-5314 转向和制动歧管阀总成 的机器来说,将软管组件的另一端安装到转向和制动歧管阀 (1) 的测压口 (2) 上。 对于配有 234-5120 转向和制动歧管阀总成 的机器来说,将软管组件的另一头安装到转向和制动歧管阀供油管路总成的测压口 (3) 上。

  1. 把机器开到平整水平的地方。 移到远离工作的机器和人员的地方。

  1. 机器上只留一名操作人员。 让所有人员远离机器或在操作人员的视野范围内。

  1. 接合停车制动器。

  1. 将变速箱置于空档位置。

  1. 起动发动机。 将发动机转速升至高怠速。

  1. 将铲斗稍微升离地面。

  1. 将方向盘向右或向左转到底。 使方向盘保持转动状态。 压力表应当指示 21500 ± 1000 kPa (3100.0 ± 145.0 psi)。

  1. 如果压力不在技术规格范围内,则更换转向和制动歧管阀 (1) 。

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