784C, 785C and 785C HAA Off-Highway Truck/Tractors Hydraulic System Caterpillar


Gear Pump (Hoist and Rear Brake Cooling)

Usage:

785C 1HW



图 1g00916891

从传动端可以看到油泵呈逆时针转动。

油泵类型: 齿轮

台架测试要求: 开始测试之前,必须将 SAE 10W 油温稳定在 66°C (151°F)。

传动端

全速下测试:

输出 ... 390 升/分钟 (103 美制加仑/分钟)
测试压力 ... 690 千帕 (100 磅/平方英寸)
发动机测试速度 ... 1750 转/分
油泵测试速度 ... 1838 转/分
输出 ... 383 升/分钟 (101 美制加仑/分钟)
测试压力 ... 6900 千帕 (1000 磅/平方英寸)
发动机测试速度 ... 1750 转/分
油泵测试速度 ... 1838 转/分

半速下测试:

输出 ... 192 升/分钟 (51 美制加仑/分钟)
测试压力 ... 690 千帕 (100 磅/平方英寸)
发动机测试速度 ... 875 转/分
油泵测试速度 ... 919 转/分
输出 ... 178 升/分钟 (47 美制加仑/分钟)
测试压力 ... 6900 千帕 (1000 磅/平方英寸)
发动机测试速度 ... 875 转/分
油泵测试速度 ... 919 转/分

盖端

全速下测试:

输出 ... 390 升/分钟 (103 美制加仑/分钟)
测试压力 ... 690 千帕 (100 磅/平方英寸)
发动机测试速度 ... 1750 转/分
油泵测试速度 ... 1838 转/分
输出 ... 383 升/分钟 (101 美制加仑/分钟)
测试压力 ... 6900 千帕 (1000 磅/平方英寸)
发动机测试速度 ... 1750 转/分
油泵测试速度 ... 1838 转/分

半速下测试:

输出 ... 192 升/分钟 (51 美制加仑/分钟)
测试压力 ... 690 千帕 (100 磅/平方英寸)
发动机测试速度 ... 875 转/分
油泵测试速度 ... 919 转/分
输出 ... 178 升/分钟 (47 美制加仑/分钟)
测试压力 ... 6900 千帕 (1000 磅/平方英寸)
发动机测试速度 ... 875 转/分
油泵测试速度 ... 919 转/分

(1) 8 只螺栓的扭矩 ... 238 ± 13 牛米 (175 ± 10 磅英尺)

注: 装配轴封,使密封件面向轴套。

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