The driving device is used to drive the concrete tank to rotate. It is composed of power takeoff, universal shaft, hydraulic pump, hydraulic motor, control valve, hydraulic oil tank and cooling device. If this part stops working due to failure, the concrete tank will not rotate, which will lead to the scrapping of the concrete in the vehicle, and even cause the whole tank of concrete to condense in the tank, resulting in the scrapping of the concrete mixing truck. Therefore, whether the driving device is reliable or not is a problem that must be paid great attention to in use. In order to ensure the integrity and reliability of the driving device, the following maintenance work shall be done:

a．萬向轉(zhuǎn)動部分是故障多發(fā)部位，應按時加注潤滑脂，并經(jīng)常檢查磨損情況，及時修理更換。車隊應有備用的萬向軸總成，以保證一旦發(fā)生故障能在幾十分鐘內(nèi)恢復工作。

a. The universal rotating part is a fault prone part, so the lubricating grease shall be filled on time, the wear shall be checked frequently, and the parts shall be repaired and replaced in time. The fleet shall have spare cardan shaft assembly to ensure that it can resume operation within tens of minutes in case of failure.

b．保證液壓油清潔。混凝土攪拌運輸車工作環(huán)境惡劣，一定要防止污水泥沙進入液壓系統(tǒng)。液壓油要按使用手冊要求定期更換。一旦檢查時發(fā)現(xiàn)液壓油中混入水或泥沙，就要立即停機清洗液壓系統(tǒng)、更換液壓油。

b. Ensure that the hydraulic oil is clean. The working environment of concrete mixer truck is bad, so it is necessary to prevent dirty cement sand from entering the hydraulic system. The hydraulic oil shall be replaced regularly according to the requirements of the operation manual. Once water or sediment is found in the hydraulic oil during inspection, stop the machine immediately to clean the hydraulic system and replace the hydraulic oil.

c．保證液壓油冷卻裝置有效。要定時清理液壓油散熱器，避免散熱器被水泥堵塞，檢查散熱器電動風扇運轉(zhuǎn)是否正常，防止液壓油溫度超標。液壓部分只要保證液壓油清潔，一般故障不多。

c. Ensure that the hydraulic oil cooling device is effective. Clean the hydraulic oil radiator regularly to prevent the radiator from being blocked by cement. Check whether the electric fan of the radiator operates normally to prevent the hydraulic oil temperature from exceeding the standard. As long as the hydraulic part ensures that the hydraulic oil is clean, there are not many general faults.