Because of loose or cracked parts, if not treated and repaired in time, it may cause straw damage or even casualties. Therefore, the customer to pay attention to the inspection of parts. Whether the welding parts such as telescopic arm and support are cracked or not.

  The smoothness of the nut and bushing whether Rusty, stuck, damaged or even broken. Because the parts exercise each other, excessive damage caused by the gap between the activities.The connecting shaft pin parts of the telescopic arm are normal. Because the concrete pump truck is a special kind of vehicle，Fully grasp the structure and characteristics of the pump truck, and obtain, certain operating methods and maintenance experience.