Transmission system: the driving mode of the mixing drum is the engine as the power source, and the power is taken by the power take-off at the rear end of the engine. It is transmitted to the variable displacement piston hydraulic pump through the transmission shaft, and then driven to rotate by the reducer through the quantitative plunger oil motor. The feeding and discharging system (loading and discharging mechanism) of the mixing drum is an important device to assist the mixing drum. Control system: it is the control part of the whole mixer. There is an I-shaped slot on the control panel, which is the movable space of the control rod; and the slot in the rear half is provided with a finite position hole to fix the position of the control rod.

该操纵系统通过汽车尾部的左右两个操纵杆来控制搅拌筒的正、反转和转速，从而来完成进出料以及搅拌动作。 供水系统：自上料混凝土搅拌罐车的供水系统主要用来清洗搅拌装置。该车型的供水系统共有两种型式，一种是离心水泵供水系统；一种是压力水箱供水系统，可供用户选装。 自上料混凝土搅拌罐车使用注意事项

The control system controls the forward, reverse and rotation speed of the mixing drum through the left and right control levers at the rear of the car, so as to complete the feeding and mixing actions. Water supply system: the water supply system of concrete mixer is mainly used to clean the mixing device. There are two types of water supply system for this vehicle, one is centrifugal pump water supply system, the other is pressure water tank water supply system, which can be selected by users. Precautions for concrete mixer truck

液压系统压力应符合使用说明书中的规定，不得随意调整。液压油的油质和油量应符合原定要求。 自上料混凝土搅拌罐车装料前，应先排净拌筒内残存的积水和杂物。在运输过程中要不停的转动，以防混凝土离析。混凝土搅拌运输车到达工地和卸料之前，应先使拌筒全速以14—18转/分转动1—2分钟，然后再进行反转卸料。

The pressure of the hydraulic system should be in accordance with the provisions of the operation manual, and should not be adjusted at will. The quality and quantity of hydraulic oil should meet the original requirements. Before the concrete mixer truck is loaded, the residual water and sundries in the mixing drum shall be drained. In the process of transportation, keep rotating to prevent concrete segregation. Before the concrete mixer truck arrives at the construction site and unloads, the mixing drum shall be rotated at full speed at 14-18 rpm for 1-2 minutes, and then reverse unloading shall be carried out.

反转之前，应使搅拌筒停稳不转。 环境温度高于+25摄氏度，从装料、运输、到卸料延续时间不得超过60分钟，环境温度低于+25摄氏度，上述时间不得超过90分钟。 冬期施工时，应切实做到：开机前检查是否结冰；下班时认真排除拌筒内及供水系统内残存积水，关闭水泵开关，将控制手柄置于“停止”位置。 在施工现场卸料完毕后，应立即用搅拌车随带的软管冲洗进料斗、出料斗、卸料溜槽等处，粘附在车身各处的污泥及混凝土。

Before reversing, the mixing drum should be stopped stably. If the ambient temperature is higher than + 25 ℃, the duration from loading, transportation to unloading shall not exceed 60 minutes; if the ambient temperature is lower than + 25 ℃, the above time shall not exceed 90 minutes. During winter construction, it is necessary to check whether there is icing before starting the machine; when off duty, carefully remove the residual water in the mixing drum and water supply system, turn off the water pump switch, and put the control handle at the "stop" position. After unloading at the construction site, the inlet hopper, discharge hopper and discharge chute should be flushed with the hose attached to the mixer to remove the sludge and concrete adhering to the vehicle body.

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