773D Off-Highway Truck and 775D Quarry Truck Caterpillar


Transmission Hydraulic Control

Usage:

773D 7CS



图 1g01981134

顶视图

(6) 3T-1511 变速箱液压控制阀总成

(1) 两个电磁阀总成的扭矩 ... 50 ± 5 N·m (37 ± 4 lb ft)

(2) 两个锁紧螺母的扭矩 ... 9.0 ± 0.5 N·m (79.7 ± 4.4 lb in)

注: 有关电磁阀总成 (1) 的更多信息,请参阅动力传动系技术规格, "电磁阀(变速箱升档/降档)"。

(3) 组装前,使用要密封的润滑剂稍稍润滑六个 O 形密封圈的孔。

(4) 四只螺栓的扭矩 ... 48 ± 4 N·m (35 ± 3 lb ft)

注: 有关变矩器进口安全阀 (5) 的信息,请参阅动力传动系技术规格, "选档器和压力控制阀(变速箱)"。

注: 该总成中的所有阀必须作为一个整体进行测试。 该总成中的所有阀必须作为一个整体组装到变速箱中。 对该整体进行测试之后,任何时候都不能再将该整体的各个零件互换。 维修期间将会提供该总成的各个部分。




图 2g01981135

前视图


注意

请勿使用任何腐蚀性物质清洁本总成的任何零件。 腐蚀性物质会腐蚀或损坏零件。


(A) 适配器组件的位置 ... 30 ± 1 度

(7) 4 只螺栓的扭矩 ... 48 ± 4 N·m (35 ± 3 lb ft)

(8) 位置传感器总成

工作电压 ... 18 至 32 VDC
工作温度 ... −40 到 110 °C (−40 到 230 °F)
将位置传感器固定在歧管 (11) 中的两只螺栓 (9) 的最后安装扭矩 ... 12 ± 4 N·m (106 ± 35 lb in)

(10) 变速箱线束组件接头的槽口面朝上。 接头槽口的中心线应与开关的安装表面平行。

(12) 用要密封的润滑剂将唇型密封的密封唇稍加润滑。

注: 在安装唇形密封之前,在密封孔上涂覆一层 138-8436 液体密封垫 。 在安装唇形密封之前,让液体密封垫干燥。 请勿将液体密封垫涂在唇形密封上。 安装唇形密封时,使密封唇面朝部件内侧。




图 3g01981136

变速箱液压控制阀

注: 有关压力控制阀 (13) 的信息,请参阅动力传动系技术规格, "压力控制阀(变速箱)"。

(14) 螺栓的扭矩 ... 48 ± 4 N·m (35 ± 3 lb ft)

(15) 21 只螺栓的扭矩 ... 30 ± 4 N·m (266 ± 35 lb in)

注: 有关选档器和压力控制阀 (16) 的信息,请参阅动力传动系技术规格, "选档器和压力控制阀(变速箱)"。

注: 有关旋转执行器 (17) 的信息,请参阅动力传动系技术规格, "旋转执行器(变速箱)"。

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