What is the function of the Telma Transmission Retarder in Truck 7?

The function of the Telma Transmission Retarder in Truck 7 is primarily to provide additional braking assistance, particularly in scenarios such as descending steep grades or during prolonged stops, by using electromagnetic braking. The first two stages of the retarder operate off throttle, meaning they engage without needing to apply the accelerator pedal. This allows for seamless braking without affecting the engine's power output, significantly enhancing safety and control while driving.

While improved fuel efficiency, reduced weight load, and increased torque output might be factors related to vehicle performance, they are not the primary functions of the Telma system. The retarder is engineered to supplement the standard braking system and improve the overall braking capability of the truck under specific conditions, making this aspect of the first two stages operating off throttle particularly important for effective vehicle control.