784C and 785C Off-Highway Truck/Tractors Air System and Brakes Caterpillar


Traction Control Valve

Usage:

785C 1HW



图 1g00779292



图 2g00779293

剖面图 A-A

测试信息

供油压力 ... 3862 ± 103 千帕 (560 ± 15 磅/平方英寸)

制动器处于 OFF 位置时的最小控制压力 ... 2470 千帕 (358 磅/平方英寸)

其中一个制动器处于 ON 位置时的最小控制压力 ... 1135 千帕 (165 磅/平方英寸)

有关详情,请参阅维修手册, "自动电子牵引辅助(牵引控制系统)"。

(1) TCS 选择器电磁阀

标称电压 ... 24 伏直流电压
负载 ... 连续
25°±5°C (77° ± 9°F) 温度下的电阻 ... 24.9 ± 0.4 欧姆
安装扭矩 ... 30.5 ± 3.5 牛米 (22.5 ± 2.58 磅英尺)
螺母的扭矩 ... 14 ± 2 牛米 (125 ± 18 磅英寸)

注: 将线圈水平放置在阀中。 线圈不应低于套筒组件。 请参考图 1。

(2) 在垫圈下面放置金属盘。

(3) 电磁阀组(牵引力控制)

标称电压 ... 12 伏直流电压
25° (77°F) 温度下的电阻 ... 16 欧姆

注: 将线圈水平放置在阀中。 线圈不应低于套筒组件。 请参考图 1。

注: 电磁阀不可调节,也不可维修。

(4) 2 只螺栓的扭矩 ... 50 ± 10 牛米 (37 ± 7 磅英尺)

(5) 球头必须抵住密封垫安装,以形成密封表面。

(6) 9G-9227 弹簧

施加测试力时的长度 ... 65.99 毫米 (2.60 英寸)
测试力 ... 261 ± 21 牛顿 (58.7 ± 4.7 磅)
测试后的自由长度 ... 82.25 毫米 (3.24 英寸)
外径 ... 27.05 毫米 (1.07 英寸)

(7) 9G-9226 弹簧

施加测试力时的长度 ... 25.55 毫米 (1.01 英寸)
测试力 ... 40.3 ± 2.0 牛顿 (9.06 ± 0.44 磅)
测试后的自由长度 ... 48.05 毫米 (1.89 英寸)
外径 ... 21.18 毫米 (0.834 英寸)

(8) 3T-9836 弹簧 (滑阀内部)

施加测试力时的长度 ... 10.78 毫米 (0.42 英寸)
测试力 ... 2.22 ± 0.18 牛顿 (0.50 ± 0.04 磅)
测试后的自由长度 ... 20.94 毫米 (0.82 英寸)
外径 ... 7.62 毫米 (0.30 英寸)

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