What is the reason for the failure of high-low speed shifting in Dongfeng 14-speed transmission?
1 Answers
High-low speed shifting failure is primarily due to transmission malfunctions, often caused by excessively dirty valve bodies. A dirty transmission valve body can degrade the quality and frictional properties of transmission fluid. This increases friction and wear, while also causing sludge buildup within the transmission, leading to blockages in the valve body and pipelines. Consequently, proper oil pressure regulation becomes impossible, resulting in transmission issues. Below are relevant details: 1. Tips: The shifting technique for Dongfeng 14-speed transmission involves operations for gears 1 to 8. Low-to-high range shifting requires pressing the half-gear switch, while high-to-low range shifting does not need the half-gear switch and should follow normal clutch-depressing and shifting procedures. Owners should note that the Dongfeng 14-speed engine transmission was innovatively developed by Volvo, featuring a half-gear switch designed on the left side of the gear lever. 2. Transmission: The Dongfeng 14-speed transmission adopts a fully synchronized, entirely new shifting mechanism based on the original design. The shifting method is very simple, with numerous gear options available inside the vehicle, allowing owners to select suitable gears according to their habits. Gear operation is also very straightforward and convenient. This transmission boasts exceptionally strong and powerful performance, providing the vehicle with ample driving force.
