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1辆XLS50型沥青洒布车在某高速公路施工时,驾驶员在启动发动机后,即直接按下了取力器开关,由此导致取力器齿轮和变速器取力齿轮被打坏。1.存在问题该类沥青洒布车底盘变速器处安装有取力器,取力器上安装有液压泵,液压泵为工作装置液压系统提供动力。取力器的接合与分离由驾驶室内的1个二位选择开关控制,当二位选择开关接通时,该开关向取力器控制气路电磁阀输出电流,气动装置控制取力器齿轮与变速器取力齿轮啮合,底盘变速器的动力
When a XLS50 asphalt sprinkler was being constructed on an expressway, the driver pushed the power take-off switch directly after starting the engine, resulting in damage to the power take-off gear and transmission take-off gear. 1. Problems There is a power take-off installed on the chassis transmission of this kind of asphalt distributor. The power take-off is equipped with a hydraulic pump, which is used to power the hydraulic system of the working device. The power take-off and disengagement is controlled by a two-position selector switch in the cab. When the two-position selector switch is on, the switch outputs current to the power take-off control circuit solenoid valve. The pneumatic device controls the power take-off gear and Gear take-off gear meshing, chassis transmission power