CX35-P800 Petroleum Transmission and CX35-P800-C18I and CX35-P800-C27I Petroleum Power Train Packages Caterpillar


Relief Valve (Transmission Hydraulic Control) - Test and Adjust

Usage:

CX35-P800 PCY



图 1g00687600

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

即使是从针孔大小的渗漏中漏出的空气或液体,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。

检查渗漏时,请务必使用木板或硬纸板作为挡板。


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

滚热的油或液压油的压力会对人员造成伤害。

发动机停机之后,液压油的压力仍会保留在液压系统里。 对液压系统进行维修之前,如果不事先释放压力,可能会造成严重伤害。

卸下机具和其油路之前,必须先把机具放到地面上,让油先冷却,才可进行工作。 只能在发动机停机,并且加注口盖冷却到可以用徒手触摸时才能卸下加注口盖。



注意

在检验、保养、测试、调整及维修发动机时,请小心确保盛接流出的液体。 在打开或拆解任何储有液体的部件之前,要准备好合适的容器收集液体。

有关适合收集和盛接卡特彼勒产品上的液体的工具和供应品,请参阅专门出版物, NENG2500, "卡特彼勒代理商工具目录"。

按照本地法规和条例处置所有液体。


简介

变速箱液压控制安全阀调节用于控制变速箱系统的机油的压力和变矩器使用的机油的压力。

所需工具




图 2g01089423

表 1
所需工具    
工具     项目     零件
编号    
说明     数量    
A     A1     8T-0855     压力表     1    
A2 6V-3989     接头     1    
A3 6V-4143     快速连接连接器     2    
A4 177-7861     软管组件     1    

测试步骤




图 3g01945278

CX35–P800 石油变速箱(显示不含整体式泵驱动装置)的典型实例

(1) 滤清器出口压力连接器

变速箱液压控制系统的安全压力可在变速箱液压控制安全阀上的测压口 (1) 处测量。

  1. 将工具 (A) 安装到测压口 (1) 上。

  1. 起动发动机。 预热机油直到机油达到 47 °C (116 °F)。

  1. 以低怠速运转发动机。 观察压力表。 变速箱液压控制的安全压力必须在系统操作、测试和调整, "动力传动系压力"中所示的数值范围内。

  1. 以高怠速运转发动机。 观察压力表。 变速箱液压控制的安全压力必须在系统操作、测试和调整, "动力传动系压力"中所示的数值范围内。

  1. 如果压力处于规定水平内,转至 6。 如果压力不在规定水平内,转至"调整步骤"。

  1. 关闭发动机。 将工具 (A) 从测压口 (1) 上拆下。

调整步骤




图 4g01995055

(2) 变速箱液压控制安全阀




图 5g01995074

变速箱液压控制安全阀 (2) 可通过增加或降低弹簧 (3) 上的预载来调节。

  1. 从变速箱液压控制安全阀的末端拆下盖 (4) 。

  1. 以适当方向转动调整螺钉 (5) 。

    顺时针旋转调整螺钉升高压力。 逆时针旋转调整螺钉降低压力。

  1. 重新检查测压口 (1) 处的压力。 拧紧锁紧螺母 (6) 并更换盖 (4) 。

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