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If the body of the concrete mixer truck vibrates or deviates slightly during driving, it is generally caused by the tire. First of all, the tire balance may be poor. The owner needs to do a four-wheel alignment and dynamic balance as soon as possible. If the vehicle does not deviate, do a tire dynamic balance.

另外一種狀況則較為嚴重，可能是因為鋼圈變形所致，這就需要車(chē)主去的維修店檢查。這種狀況一般發(fā)生在使用年限較長(cháng)的水泥攪拌車(chē)身上。一般攪拌車(chē)更換新輪胎、新鋼圈時(shí)都要做一次輪胎平衡，否則配重不平均時(shí)方向盤(pán)就容易發(fā)生抖動(dòng)的現象。車(chē)身抖動(dòng)對行車(chē)舒適感和操控判斷都會(huì )有所影響。

The other condition is more serious, which may be caused by the deformation of the steel ring, which requires the owner to go to a professional maintenance shop for inspection. This situation generally occurs on the cement mixing vehicle body with long service life. Generally, when replacing new tires and steel rings for mixer trucks, tire balance should be done once, otherwise the steering wheel is prone to shake when the counterweight is uneven. Body shake will affect driving comfort and handling judgment.

第三種情況是因為攪拌車(chē)傳動(dòng)軸變形不平衡引起，一般這種情況出現在底盤(pán)碰撞過(guò)的車(chē)比較多。

The third situation is caused by the unbalanced deformation of the transmission shaft of the mixer truck. Generally, this situation occurs in more vehicles with chassis collision.

攪拌車(chē)怠速時(shí)的車(chē)身抖動(dòng)

Body shaking of mixer truck at idle speed

怠速車(chē)身抖動(dòng)是很多攪拌成司機常遇到的狀況。如果司機在啟動(dòng)攪拌車(chē)或將攪拌車(chē)停駛未關(guān)閉發(fā)動(dòng)機情況下，如果發(fā)現車(chē)身抖動(dòng)明顯，那么可能意味著(zhù)攪拌車(chē)存在下面四種狀況：

Idling body shaking is a common condition for many drivers. If the driver finds obvious body shaking when starting the mixer or stopping the mixer without turning off the engine, it may mean that the mixer has the following four conditions:

1.攪拌車(chē)發(fā)動(dòng)機積碳嚴重

1. Serious carbon deposition of mixer engine

造成混凝土攪拌車(chē)抖動(dòng)常見(jiàn)的原因就是節氣門(mén)過(guò)臟或噴油嘴積炭過(guò)多。當發(fā)動(dòng)機內部的積碳過(guò)多時(shí)，冷啟動(dòng)噴油頭噴出的汽油會(huì )被積碳大量吸收，導致冷啟動(dòng)的混合氣過(guò)稀，使得啟動(dòng)困難，這種狀況下，只有等到積碳吸收的汽油飽和，才容易著(zhù)車(chē)，著(zhù)車(chē)后吸附在積碳上的汽油又會(huì )被攪拌車(chē)發(fā)動(dòng)機的真空吸力吸入汽缸內燃燒，又使混合氣變濃，攪拌車(chē)發(fā)動(dòng)機的可燃混合氣時(shí)稀時(shí)濃，造成冷啟動(dòng)后怠速抖動(dòng)。氣溫越低，冷啟動(dòng)所需要的油量越大，積碳的存在就越會(huì )影響冷啟動(dòng)的順利與否。

The most common reason for the shaking of concrete mixer truck is that the throttle is too dirty or the fuel injection nozzle has too much carbon deposition. When there is too much carbon deposit inside the engine, the gasoline ejected from the cold start fuel injection head will be absorbed by the carbon deposit, resulting in too thin cold start mixture, which makes it difficult to start. In this case, it is easy to start the car only when the gasoline absorbed by the carbon deposit is saturated. The gasoline adsorbed on the carbon deposit after landing will be sucked into the cylinder for combustion by the vacuum suction of the mixer engine, It also thickens the mixture, and the combustible mixture of the mixer engine is thin and thick, resulting in idle jitter after cold start. The lower the temperature, the greater the amount of oil required for cold start, and the existence of carbon deposition will affect the smooth cold start.

辦法：清洗油路，檢查怠速馬達是否有積碳應該清洗。

Solution: clean the oil circuit and check whether there is carbon deposit in the idle motor. It should be cleaned.

2.攪拌車(chē)點(diǎn)火系統問(wèn)題

2. Ignition system of mixer truck

檢查一下火花塞、高壓導線(xiàn)和點(diǎn)火線(xiàn)圈的工作狀況，點(diǎn)火系統工作不良，火花塞跳火狀況不好同樣會(huì )導致這類(lèi)故障現象。

Check the working conditions of spark plugs, high-voltage wires and ignition coils. Poor ignition system and poor spark plug jumping will also lead to such faults.

辦法：檢查火花塞是否積碳過(guò)多，更換火花塞。

Solution: check whether the spark plug has excessive carbon deposit and replace the spark plug.

3.攪拌車(chē)油壓不穩

3. Unstable oil pressure of mixer truck

如果已經(jīng)清理過(guò)發(fā)動(dòng)機積碳、洗過(guò)節氣門(mén)、換過(guò)油墊以及火花塞等，仍然發(fā)現怠速時(shí)車(chē)身抖動(dòng)，建議您到修配廠(chǎng)檢查燃油供油壓力以及進(jìn)氣壓力傳感器等是否正常，如果油泵供油壓力不正?；蜻M(jìn)氣壓力傳感器數值錯誤和工作不良都會(huì )引發(fā)車(chē)身抖動(dòng)。

If you have cleaned the engine carbon deposit, washed the throttle valve, changed the oil pad and spark plug, and still find the body shaking at idle speed, it is recommended that you go to the repair shop to check whether the fuel supply pressure and intake pressure sensor are normal. If the fuel supply pressure of the oil pump is abnormal or the value of the intake pressure sensor is wrong and works poorly, the body shaking will be caused.

辦法：檢查油壓，必要時(shí)更換部件。

Solution: check the oil pressure and replace the parts if necessary.

4、攪拌車(chē)發(fā)動(dòng)機部件老化

4. Aging of engine parts of mixer truck

自動(dòng)攪拌車(chē)抖動(dòng)還與引擎腳(又稱(chēng)機爪墊)老化有關(guān)。引擎腳其實(shí)是攪拌車(chē)發(fā)動(dòng)機的避震系統，引擎腳負責吸收發(fā)動(dòng)機在運轉時(shí)候的細微抖動(dòng)，如果引擎腳出現問(wèn)題，這些震動(dòng)就會(huì )傳到方向盤(pán)、駕駛室內，造成怠速時(shí)發(fā)生抖動(dòng)。

The shaking of automatic mixer truck is also related to the aging of engine foot (also known as machine claw pad). The engine foot is actually the shock absorber system of the mixer engine. The engine foot is responsible for absorbing the slight jitter of the engine during operation. If there is a problem with the engine foot, these vibrations will be transmitted to the steering wheel and cab, resulting in jitter at idle speed.

辦法：更換部件。

Solution: replace the parts.