After the fixed oil circuit is smooth and there is no air in the diesel engine supply system, the cover plate of the oil pump can be removed, the control handle can be pressed, and the pull rod of the oil pump can be moved 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 loading concrete mixer is flexible and the plunger spring is not broken, the diesel engine can be started to run at a medium speed for 10 minutes. In case of fire break, a copper hammer can be used to tap the large nut of the oil pump gently while listening to the sound of the diesel engine. If the sound is not normal, it means that the piston and the pushrod of the oil pump are jammed and repaired or replaced.

拆下噴油器總成，轉動曲軸數圈，即有水噴出，說明缸蓋，缸體有裂紋或砂眼，遇到這種情況時，可向用戶解釋或向自動上料混凝土攪拌車公司反映。低壓油流暢通后，可用手壓泵排除油路中的空氣，打開泵頭放氣螺釘，直到沒有氣泡時，方可上緊放氣螺釘。

Remove the fuel injector assembly and rotate the crankshaft for several turns, i.e. there is water ejecting, indicating that there is crack or sand hole in the cylinder head and cylinder block. In this case, explain to the user or report to the automatic feeding mixer company. After the low-pressure oil flow is smooth, the air in the oil circuit can be removed by hand pump, and the air bleed screw of the pump head can be opened until there is no bubble, then the air bleed screw can be tightened.

油嘴不霧化，油泵柱塞彈簧和彈簧座斷裂，卡死不工作，或是柴油內有水。拆下油嘴總成檢查開啟壓力和霧化，如果油嘴總成正常，可讓用戶用干凈柴油裝入壺中用油路旁接法進行試驗。打開自動上料混凝土攪拌車油箱開關，拆下輸油泵進油管，看油流情況，如果油流很快，說明正常，如果油流時斷時續查油路。

The nozzle is not atomized, the plunger spring and spring seat of the oil pump are broken, stuck and do not work, or there is water in the diesel oil. 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 fill the pot and use the side connection method of the oil circuit to conduct the test. Turn on the oil tank switch of the automatic feeding mixer, remove the oil inlet pipe of the oil delivery 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 continuously.

自動上料混凝土攪拌車的正確操作方法步驟

Correct operation procedure of automatic loading mixer

自動上料混凝土攪拌車柔性正確操作方法可以歸納為：一輕、二穩、三離、四勤、五協調、六嚴禁。

The flexible and correct operation methods of the automatic feeding mixer can be summarized as follows: one light, two stable, three departures, four attendance, five coordination and six prohibitions.

一輕：在自動上料混凝土攪拌車作業時腳跟緊抵駕駛室地板，腳板和油門踏板保持平行，輕緩地下壓加油踏板。

First light: during the operation of the automatic loading mixer, keep the heel close to the floor of the cab, keep the foot plate parallel to the accelerator pedal, and press the oil pedal gently.

二穩：自動上料混凝土攪拌車在作業中，油門始終要穩住。一般作業狀態下，油門開度在70%左右為宜。

Two stable: in the operation of the automatic feeding mixer, the accelerator should always be stable. In general operation, the throttle opening is about 70%.

三離：在自動上料混凝土攪拌車作業時，腳板應和制動踏板分離開，平放到駕駛室地板上，決不能踩在制動踏板上。自動上料混凝土攪拌車常常在凹凸不平的工地作業，如果腳總是踩在制動踏板上，機身上下竄動會造成駕駛員不輕意地踩制動踏板。一般情況下，要用控制油門減速的辦法控制機況和換擋。這樣既避免了頻繁制動造成制動系統過熱，又為自動上料混凝土攪拌車快捷的提速帶來方便。

Three off: during the operation of the automatic feeding mixer, the foot plate shall be separated from the brake pedal and placed on the floor of the cab, never on the brake pedal. The automatic loading mixer often works in the uneven construction site. If the foot is always on the brake pedal, the body will move up and down, which will cause the driver to step on the brake pedal unwittingly. In general, it is necessary to control the engine condition and shift by controlling the throttle deceleration. This not only avoids the brake system overheating caused by frequent braking, but also brings convenience for the rapid speed-up of the automatic feeding mixer.

四勤：在自動上料混凝土攪拌車作業時，特別是在鏟挖作業時，應在油門穩定情況下，用循環扳動起升和轉斗操縱桿的方法使鏟斗鏟滿物料。起升和轉斗操縱杠的循環扳動就是所說的“勤”。這個過程非常重要，對耗油量的影響很大。

Siqin: during the operation of the automatic loading mixer, especially in the digging operation, the bucket shall be full of materials by turning the lifting and turning control levers circularly when the accelerator is stable. Lift and turn the bucket control lever cycle pull is called "frequently.". This process is very important and has a great impact on fuel consumption.

五協調：協調就是起升和轉斗操縱杠有機的配合。自動上料混凝土攪拌車一般的鏟挖過程首先是將鏟斗平放在地面，平穩地駛向料堆。在鏟斗平行鏟往料堆遇阻力時，首先應遵循先起臂后收斗的原則。這樣可以有效地避免鏟斗底部受到阻力，從而能夠充分發揮的掘起力。

5. Coordination: coordination is the organic coordination of lifting and rotating bucket control bars. In the general digging process of the automatic loading mixer, the bucket is first placed on the ground, and it drives smoothly to the pile. When the parallel shovel of the bucket encounters resistance to the material pile, the principle of first lifting the arm and then retracting the bucket shall be followed. In this way, the resistance on the bottom of the bucket can be effectively avoided, so as to give full play to the maximum digging force.

六嚴禁：首先是嚴禁輪胎打滑。自動上料混凝土攪拌車作業時，遇阻力而猛加油門往往會出現輪胎打滑的現象。這種現象通常是由于駕駛員操作不當造成的，既增加了油耗又損傷了輪胎。其次是嚴禁后輪翹起。由于自動上料混凝土攪拌車的掘起力大，駕駛員通常在鏟挖堅實的原土和石料山等作業過程中，如果操作不當就容易出現兩后輪翹起離地現象。這種翹起動作的落地慣性，會造成鏟斗的刃板斷裂、鏟斗變形；后輪翹起很高時還容易引起前后機架等結構的焊接處開裂，甚至板材斷裂等。第三是嚴禁撞擊料堆。鏟挖普通物料，自動上料混凝土攪拌車可以用II檔作業，嚴禁以II檔以上的檔位向料堆進行慣性沖擊。正確的方法應該是鏟斗在接近料堆時適時地把檔位轉換為I檔完成一個鏟料過程。

6. No: first, no tire slipping. During the operation of the automatic loading mixer, when encountering the resistance and the sudden filling valve, the tire often slips. This phenomenon is usually caused by improper operation of the driver, which increases fuel consumption and damages the tire. Second, it is strictly prohibited to raise the rear wheel. Due to the large digging force of the automatic loading mixer, the driver usually digs the solid raw soil and stone mountain during the operation process, if the operation is improper, the two rear wheels are prone to rise and leave the ground. The landing inertia of this kind of lifting action will cause the edge plate of the bucket to break and the bucket to deform; when the rear wheel is very high, it is easy to cause the welding joints of the front and rear frames and even the plate to break. Third, it is strictly prohibited to impact the pile. Shovel and excavate common materials. The automatic loading mixer can operate in gear II. It is strictly prohibited to use gear II or above to carry out inertial impact on the pile. The correct way is to shift the bucket from gear I to gear I in time when the bucket is close to the pile to complete a shoveling process.

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