Hydraulic retarder, also known as hydraulic retarder. It is a kind of automobile retarder which reduces the running speed of the vehicle through a hydraulic device.
The oil of hydraulic retarder is not so mysterious, but it is actually traditional automobile oil. Generally, 5W-40 or 10W-40 gasoline engine oil is used. According to climatic conditions, gasoline engine oil with low viscosity should be selected in cold areas. Changing the oil requires going to a professional service station. Don't operate at will.
In general, the fuel consumption of parallel hydraulic retarder is 6-7 liters, which is slightly more than that of series hydraulic retarder. Under normal use, the oil change cycle is 95438+100000 km. Under abnormal and heavy use, the oil change cycle needs to be advanced. For details, please refer to the oil change instructions of the corresponding hydraulic retarder.
Although good braking effect can be obtained by using exhaust braking when a car is going down a long slope, the effect of exhaust braking is limited for a mine dump truck with a large tonnage, and it will cause some damage to the engine. Therefore, all mining dump trucks equipped with hydraulic mechanical transmission are equipped with hydraulic retarder.