1. Shock absorber: oil leakage of mixer truck is a precursor of shock absorber damage. In addition, the obvious aggravation of driving bumps on bad roads or the longer braking interval are also signs of shock absorber damage.

2、懸架操控臂膠套：膠套損壞后車輛將出現跑偏、打擺等一系列問題，即便做四輪定位也無濟于事。假如仔細查看底盤，膠套損壞很容易發現。

2. Suspension control arm rubber sleeve: after the rubber sleeve is damaged, the vehicle will have a series of problems such as deviation and swing. Even four-wheel alignment is useless. If you look at the chassis carefully, the damage of the rubber sleeve is easy to find.

3、轉向拉桿：轉向拉桿松弛的話就會對汽車的轉向操控形成影響，能夠通過抓住拉桿，用力搖晃來判斷轉向拉桿是否有異常，假如出現了晃動，那么就說明有異常，要立即替換球頭或拉桿總成。

3. Steering tie rod: if the steering tie rod is loose, it will affect the steering control of the vehicle. You can judge whether the steering tie rod is abnormal by grasping the tie rod and shaking it with force. If shaking occurs, it indicates that there is an abnormality. Replace the ball joint or tie rod assembly immediately.

4、排氣管：水泥攪拌車排氣管是車底容易受損的部件之一，檢修時別忘了看一眼。尤其是帶三元催化器的排氣管，更應仔細檢查。平常為了維護混凝土攪拌車底盤，能夠給攪拌車底盤做個底盤裝甲，這樣就能夠起到很好的維護底盤的效果，在行進時也要留意防止讓混凝土攪拌車底盤受到碰擊。

4. Exhaust pipe: the exhaust pipe of cement mixer truck is one of the easily damaged parts at the bottom of the truck. Don't forget to take a look during maintenance. Especially the exhaust pipe with three-way catalyst should be carefully checked. In order to maintain the chassis of the concrete mixer truck, we can make a chassis armor for the chassis of the mixer truck, so as to have a good effect of maintaining the chassis. When traveling, we should also pay attention to prevent the chassis of the concrete mixer truck from being hit.

5、萬向節防塵套：別小看攪拌車萬向節外面的防塵套，它不僅有防塵效果，還能避免萬向節周圍的潤滑脂流失，防塵套一旦破損，潤滑脂很快就會流失，由于干磨，萬向節很容易損壞。

5. Universal joint dust boot: don't underestimate the dust boot outside the universal joint of the mixer truck. It not only has dust-proof effect, but also can avoid the loss of grease around the universal joint. Once the dust boot is damaged, the grease will be lost quickly. Due to dry grinding, the universal joint is easy to be damaged.