During the transportation of concrete, the mixing drum shall not stop running, and the rotation speed of the tank body shall be kept at 2-3 revolutions per minute to prevent the initial setting and segregation of concrete;
When the rotation direction of the mixing drum is switched between forward rotation and reverse rotation, put the control handle to the middle position first, and then switch the rotation direction of the mixing drum after the mixing drum stops rotating;
The hydraulic system is the key part of the vehicle, its working pressure shall not be adjusted at will, and the hydraulic oil shall be changed regularly according to the requirements of the operation manual, and the oil brand number shall meet the corresponding regulations;
In the process of transportation of concrete mixer vehicles, the volume of concrete loaded shall not exceed the allowable load. Overload will not only cause accelerated wear of vehicles, but also have a serious impact on driving safety;
After the concrete mixer works every day, the driver shall be responsible for injecting clear water into the mixing drum and rotating it at high speed (12-14 RPM) for 5-10 minutes, and then draining the water to ensure the cleanness of the drum. When cleaning all parts of the mixing drum with high-pressure water, pay attention to avoid electrical components and lubricating parts;
Regularly check the tightness of the connecting bolts between the reducer and the front frame, reducer and tank body, subframe and chassis, as well as between the idler and the rear frame, and make sure that the tightening torque of the bolts at each part meets the requirements. The lubricating grease shall be added to the lubricating part of the concrete mixer according to the specified requirements;
After the concrete mixer truck is parked in the open air for a period of time, the mixing drum shall be reversed before loading to drain the water and sundries in the drum. Before loading, it is better to fill a small amount of water into the cylinder, and speed up the mixing before unloading to prevent sticking. When loading, the rotation speed of the tank can be increased appropriately according to the slump of the concrete.