The function of the drive device is to drive the rotation of the concrete tank. It consists of a power take-off device, a cardan shaft, a hydraulic pump, a hydraulic motor, a control valve, a hydraulic oil tank and a cooling device. If this part is stopped due to a malfunction, the concrete tank will not be able to turn, which will lead to the scrapping of the concrete in the car, and even cause the concrete of the whole tank to condense in the tank, causing the concrete mixer truck to be scrapped. Therefore, whether the driving device is reliable is a problem that must be highly regarded in use. In order to ensure that the drive is sound and reliable, the following maintenance work should be done:
a. The universal rotating part is a part with frequent faults. Grease should be added on time, and the wear condition should be checked frequently and repaired and replaced in time. The team should have a spare universal shaft assembly to ensure that it can resume work within tens of minutes in the event of a failure.
b. Keep the hydraulic oil clean. The poor working environment of concrete mixer trucks must prevent dirt and cement from entering the hydraulic system. Hydraulic oil should be replaced regularly as required by the user manual. Once the hydraulic oil is found mixed with water or sand during inspection, the hydraulic system must be shut down immediately to replace the hydraulic oil.
c. Ensure that the hydraulic oil cooling device is effective. It is necessary to regularly clean up the hydraulic oil radiator to prevent the radiator from being blocked by the cement, check whether the radiator electric fan is running normally, and prevent the hydraulic oil temperature from exceeding the standard. Hydraulic pressure as long as the hydraulic oil to ensure that the general failure is not much; but different manufacturers, the service life is not the same. 
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