确定油路畅通，柴油机供给系统没有空气后，可拆开油泵盖板，板动操纵手柄，拨动油泵拉杆，看拉杆是否灵活和柱塞弹簧是否断裂。在自动上料混凝土搅拌车拉杆灵活和柱塞弹簧没断的情况下，可启动柴油机中速运转10分钟，还有断火现象时，可用一只铜榔头轻轻敲击输油泵大螺帽，一边敲一边听柴油机声音，如果声音不正常，说明输油泵活塞和推杆发卡，进行修理或更换。

After confirming that the oil circuit is unblocked and there is no air in the diesel engine supply system, the cover plate of the oil pump can be removed, the operating handle can be moved, and the pull rod of the oil pump can be pulled to see whether the pull rod is flexible and whether the plunger spring is broken. Under the condition that the pull rod of the automatic feeding concrete mixer is flexible and the plunger spring is not broken, the diesel engine can be started to run at a moderate speed for 10 minutes. If the fire is still broken, a copper hammer can be used to gently tap the large nut of the fuel transfer pump, while listening to the sound of the diesel engine. If the sound is abnormal, it means that the piston and push rod of the fuel transfer pump are jammed for repair or replacement.

拆下喷油器总成，转动曲轴数圈，即有水喷出，说明缸盖，缸体有裂纹或砂眼，遇到这种情况时，可向用户解释或向自动上料搅拌车公司反映。低压油流畅通后，可用手压泵排除油路中的空气，打开泵头放气螺钉，直到没有气泡时，方可上紧放气螺钉。

Remove the fuel injector assembly, rotate the crankshaft for several cycles, and water sprays out, indicating that the cylinder head and cylinder block have cracks or sand holes. In this case, you can explain to the user or report to the automatic feeding mixer company. After the low pressure oil flow is unblocked, the air in the oil circuit can be removed by the hand pump, and the air release screw of the pump head can be opened until there is no bubble, then the air release screw can be tightened.

油嘴不雾化，油泵柱塞弹簧和弹簧座断裂，卡死不工作，或是柴油内有水。拆下油嘴总成检查开启压力和雾化，如果油嘴总成正常，可让用户用干净柴油装入壶中用油路旁接法进行试验。打开自动上料搅拌车油箱开关，拆下输油泵进油管，看油流情况，如果油流很快，说明正常，如果油流时断时续查油路。

The nozzle does not atomize, the plunger spring and spring seat of the oil pump are broken, stuck and do not work, or there is water in the diesel. Remove the nozzle assembly to check the opening pressure and atomization. If the nozzle assembly is normal, the user can use clean diesel oil to load it into a pot and use the oil circuit side connection method to test. Turn on the oil tank switch of the automatic feeding mixer truck, remove the oil inlet pipe of the oil transfer pump, and check the oil flow. If the oil flow is fast, it indicates that it is normal. If the oil flow is intermittent, check the oil circuit.

自动上料搅拌车的正确操作方法步骤

Correct operation steps of automatic feeding mixer

自动上料搅拌车柔性正确操作方法可以归纳为：一轻、二稳、三离、四勤、五协调、六严禁。

The correct flexible operation methods of the automatic feeding mixer can be summarized as follows: one light, two stable, three separated, four diligent, five coordinated and six forbidden.

一轻：在自动上料搅拌车作业时脚跟紧抵驾驶室地板，脚板和油门踏板保持平行，轻缓地下压加油踏板。

One light: during the operation of the automatic feeding mixer, the heel is firmly against the cab floor, the foot plate is parallel to the accelerator pedal, and gently press the fuel pedal.

二稳：自动上料搅拌车在作业中，油门始终要稳住。一般作业状态下，油门开度在70%左右为宜。

Second stability: During the operation of the automatic feeding mixer, the accelerator should always be stable. In general operation state, the throttle opening should be about 70%.

三离：在自动上料搅拌车作业时，脚板应和制动踏板分离开，平放到驾驶室地板上，决不能踩在制动踏板上。自动上料搅拌车常常在凹凸不平的工地作业，如果脚总是踩在制动踏板上，机身上下窜动会造成驾驶员不轻意地踩制动踏板。一般情况下，要用控制油门减速的办法控制机况和换挡。这样既避免了频繁制动造成制动系统过热，又为自动上料搅拌车快捷的提速带来方便。

Three separations: During the operation of the automatic feeding mixer, the foot plate shall be separated from the brake pedal, and placed flat on the cab floor. Never step on the brake pedal. The automatic feeding mixer often works on uneven construction sites. If the foot always steps on the brake pedal, the body will move up and down, causing the driver to step on the brake pedal carelessly. In general, the engine condition and gear shifting shall be controlled by controlling the throttle deceleration. This not only avoids overheating of the braking system caused by frequent braking, but also brings convenience for fast speed increase of the automatic feeding mixer.

四勤：在自动上料搅拌车作业时，特别是在铲挖作业时，应在油门稳定情况下，用循环扳动起升和转斗操纵杆的方法使铲斗铲满物料。起升和转斗操纵杠的循环扳动就是所说的“勤”。这个过程非常重要，对耗油量的影响很大。

Fourth, during the operation of the automatic feeding mixer, especially during the shoveling operation, the bucket shall be filled with materials by cyclically pulling the lifting and bucket turning control levers under the condition that the accelerator is stable. The cyclic pulling of the lifting and bucket turning control levers is called "diligence". This process is very important and has a great impact on fuel consumption.

五协调：协调就是起升和转斗操纵杠配合。自动上料搅拌车一般的铲挖过程首先是将铲斗平放在地面，平稳地驶向料堆。在铲斗平行铲往料堆遇阻力时，首先应遵循先起臂后收斗的原则。这样可以更好地避免铲斗底部受到阻力，从而能够充分发挥大的掘起力。

Five coordination: coordination refers to the coordination of lifting and bucket control lever. The general shovel digging process of the automatic loading mixer is to place the bucket flat on the ground and drive steadily to the material pile. When the bucket is parallel to the material pile and encounters resistance, the principle of lifting the boom first and then retracting the bucket shall be followed. In this way, the bucket bottom can be better protected from resistance, so as to give full play to the large digging force.

六严禁：首先是严禁轮胎打滑。自动上料搅拌车作业时，遇阻力而猛加油门往往会出现轮胎打滑的现象。这种现象通常是由于驾驶员操作不当造成的，既增加了油耗又损伤了轮胎。其次是严禁后轮翘起。由于自动上料搅拌车的掘起力大，驾驶员通常在铲挖坚实的原土和石料山等作业过程中，如果操作不当就容易出现两后轮翘起离地现象。这种翘起动作的落地惯性，会造成铲斗的刃板断裂、铲斗变形；后轮翘起很高时还容易引起前后机架等结构的焊接处开裂，甚至板材断裂等。第三是严禁撞击料堆。铲挖普通物料，自动上料搅拌车可以用II档作业，严禁以II档以上的档位向料堆进行惯性冲击。正确的方法应该是铲斗在接近料堆时适时地把档位转换为I档完成一个铲料过程。

VI. Prohibitions: First of all, tire skidding is strictly prohibited. During the operation of the automatic feeding mixer, when encountering resistance, the fuel valve will often slip. This phenomenon is usually caused by the driver's improper operation, which increases fuel consumption and damages the tire. Secondly, it is forbidden to tilt the rear wheel. Due to the large digging force of the automatic feeding mixer, the driver is usually prone to the phenomenon of two rear wheels tilting off the ground if he/she does not operate properly in the process of digging solid original soil and stone hill. The landing inertia of the lifting action will cause the blade of the bucket to break and the bucket to deform; When the rear wheel is cocked up very high, it is also easy to cause cracks at the welding points of the front and rear frames and other structures, or even plate fractures. Third, it is strictly prohibited to impact the material pile. For shoveling and digging ordinary materials, the automatic feeding mixer can operate with gear II. Inertial impact to the material pile with gear above gear II is strictly prohibited. The correct method should be to change the gear to gear I timely when the bucket is approaching the pile to complete a shoveling process.