What is the correct way to use the exhaust brake on a truck?
1 Answers
The correct method for using a truck's exhaust brake is as follows: 1. The exhaust brake, also known as the exhaust retarder, is widely used in large diesel vehicles. A regulating valve is installed on the engine's exhaust pipe. By closing this valve, the pressure during the exhaust stroke is increased, utilizing the generated negative pressure to obtain braking force. The regulating valve is typically controlled using compressed air or vacuum. 2. The mechanism is usually driven by the same power source as the main brake. The exhaust brake is generally activated by a manual switch. To prevent the engine from stalling when stopped and to avoid exhaust brake operation during fuel injection, the exhaust brake is automatically released when the accelerator pedal or clutch pedal is pressed. 3. Since the fuel supply is cut off during operation, the exhaust brake cannot be used in gasoline vehicles. Proper use of the exhaust brake can significantly reduce the use of the service brake (foot brake), thereby reducing wear on the brake pads (or discs) and greatly lowering the risk of driving safety caused by overheating due to continuous braking of the pads (or discs).