When driving a self mixing concrete mixer, we often encounter such a situation: when the mixer engine idles, the clutch pedal has been pressed to the bottom, but it is very difficult to shift, and the speed change gear has a strong impact sound. After reluctantly shifting into gear, the clutch pedal has not been released, and the concrete mixer has been running or flameout. This paper analyzes the reasons for this phenomenon. Check by the following methods: remove the bottom cover of the clutch, put the transmission into neutral, and press the clutch to the end. Then, use the lifting tool to move the driven plate. If it can be turned easily, it means that the clutch is well separated; if it can not be moved, it means that the clutch is not completely separated.

自拌混凝土攪拌機(jī)故障排除方法：

Troubleshooting of self mixing concrete mixer:

1、檢查混凝土攪拌機(jī)離合器踏板自由行程是否過(guò)大，并調(diào)整。

1. Check whether the free stroke of clutch pedal of concrete mixer is too large and adjust it.

2、檢查自拌混凝土攪拌機(jī)分離杠桿高度是否一致、是否過(guò)低。在車下?lián)軇?dòng)分離撥叉，使攪拌機(jī)分離軸承前端靠在分離杠桿內(nèi)端面上，轉(zhuǎn)動(dòng)離合器一周進(jìn)行查看，如果分離杠桿的內(nèi)端能同時(shí)和分離軸承接觸不上，說(shuō)明分離杠桿的高度不一致，需應(yīng)進(jìn)行調(diào)整。如果分離杠桿高度一致，仍然分離不徹底，就要檢查杠桿高度。將各分離杠桿調(diào)到同樣的高度，如果能徹底分離，說(shuō)明原來(lái)調(diào)整不當(dāng)或是磨損過(guò)甚。分離杠桿調(diào)整之后，必須重新調(diào)整離合器踏板的自由行程。

2. Check whether the separation lever height of self mixing concrete mixer is consistent or too low. Move the release fork under the car to make the front end of the release bearing of the mixer lean against the inner end face of the release lever. Rotate the clutch for a week to check. If the inner end of the release lever can not contact with the release bearing at the same time, it indicates that the height of the release lever is inconsistent and needs to be adjusted. If the separation lever height is consistent and the separation is not complete, check the lever height. Adjust the release lever to the same height. If it can be separated completely, it means that the original adjustment is improper or the wear is too much. After adjusting the release lever, the free stroke of the clutch pedal must be readjusted.
            

3、如果上述調(diào)整正常后，仍然分離不徹底，就要拆下自拌混凝土攪拌機(jī)離合器，檢查從動(dòng)盤(pán)是否裝反、軸向移動(dòng)是否困難、主從動(dòng)盤(pán)有無(wú)翹曲、分離杠桿螺釘是否松動(dòng)、浮動(dòng)銷是否脫落。

3. If the above adjustment is normal and the separation is not complete, the clutch of the self mixing concrete mixer should be removed to check whether the driven plate is installed reversely, whether the axial movement is difficult, whether the master-slave plate is warped, whether the release lever screw is loose, and whether the floating pin falls off.

4、對(duì)于新鉚的摩擦片的離合器，要檢查從動(dòng)盤(pán)和摩擦片是否過(guò)厚。如果過(guò)厚，可在離合器蓋和飛輪之間加墊片。對(duì)于混凝土攪拌機(jī)液壓傳動(dòng)的離合器，除上述檢查外，還應(yīng)檢查制動(dòng)液是否缺少，管道是否滲漏并排出液壓系統(tǒng)內(nèi)的空氣。

4. For the clutch with new riveted friction plate, check whether the driven plate and friction plate are too thick. If it is too thick, add a gasket between the clutch cover and flywheel. For the clutch of hydraulic transmission of concrete mixer, in addition to the above inspection, it is also necessary to check whether the brake fluid is lacking, whether the pipeline is leaking and discharge the air in the hydraulic system.