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、悬架操控臂胶套：胶套损坏后车辆将出现跑偏、打摆等一系列问题，即便做四轮定位也无济于事。假如仔细查看底盘，胶套损坏很容易发现。

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、转向拉杆：转向拉杆松弛的话就会对汽车的转向操控形成影响，能够通过抓住拉杆，用力摇晃来判断转向拉杆是否有异常，假如出现了晃动，那么就说明有异常，要立即替换球头或拉杆总成。

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、排气管：水泥搅拌车排气管是车底容易受损的部件之一，检修时别忘了看一眼。尤其是带三元催化器的排气管，更应仔细检查。平常为了维护混凝土搅拌车底盘，能够给搅拌车底盘做个底盘装甲，这样就能够起到很好的维护底盘的效果，在行进时也要留意防止让混凝土搅拌车底盘受到碰击。

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、万向节防尘套：别小看搅拌车万向节外面的防尘套，它不仅有防尘效果，还能避免万向节周围的润滑脂流失，防尘套一旦破损，润滑脂很快就会流失，由于干磨，万向节很容易损坏。

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.