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What are the consequences of forgetting to turn off the retarder?

1 Answers

IsabellaAnn

07/30/25 10:51am

If the differential lock is not turned off, it will affect the rotation speed of the wheels on both sides, making them completely similar. Here is the relevant information: 1. Retarder: It is an auxiliary braking device for large vehicles (trucks, buses), allowing heavier vehicles to decelerate smoothly without consuming the braking system. Small cars do not have this feature. 2. Electromagnetic retarder: It is equivalent to installing a "generator" on the drive shaft. When not powered, there is no contact or wear. When deceleration is needed, the driver turns on the switch on the dashboard, and the drive shaft is subjected to the resistance of the electromagnetic field, achieving a braking effect. It automatically cuts off power when the accelerator is pressed again. The advantage is no wear, but the disadvantage is its bulky structure. 3. Hydraulic turbine retarder: A turbine chamber is added at the rear end of the transmission housing. When the braking circuit is activated, the transmission oil is pressurized in the turbine to create damping and achieve a braking effect. There is no wear, but additional cooling is required. This type is rare in China.

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