Are you talking about the Jake Brake on semis?
No, you should not turn off the retarder when the road is wet or snow covered because the retarder helps to slow down the vehicle without relying solely on the brakes. Keeping the retarder on can help maintain control and stability in slippery conditions.
Usually busses do not have retarders because they are too loud and cannot be used inside most city limits on a semi truck they have a switch to turn on the jake brake (engine brake, or retarder) when the switch is on and you let the accelerator all the way up the brake takes over. All a retarder does is use your air brakes (or hydraulic) less to prevent overheating that will lead to brake loss.
If your brakes are good and you know how to drive, sure. There was a time when there were no engine or exhaust retarders, and drivers simply had to gear down and take it nice and easy down a grade.
A hydraulic retarder works by using fluid dynamics to slow down a vehicle without relying on traditional brakes. It consists of a rotor and a stator, where the rotor is connected to the drivetrain and the stator is fixed. When the vehicle needs to decelerate, fluid is forced between the rotor and stator, creating resistance that dissipates energy as heat, effectively slowing the vehicle. This system provides smooth and controlled deceleration, reducing wear on mechanical brakes and enhancing safety.
It's also known as an engine retarder brake. It opens the exhaust valves in the cylinders after the compression cycle. This releases the trapped air, and slows the vehicle down. Jake brake actually refers to the compression brakes made by Jacobs Vehicle Systems - however, it's become a generic term applied to all such systems. Not all retarders are engine compression brakes - there are also exhaust brakes, which can be in place of, or in conjunction with, engine compression brakes. These close off the flow of exhaust, and tend to sound more like vacuum cleaners.
take out the engine speed sensor in the transmission or transfer case depending if its manual or automatic
a retarder shouldn't be using an automobile in the first place
If engine vacuum is low the brakes will be difficult to push. Sometimes, if the engine isn't running well when it's cold, the vacuum level will be low and the brakes won't work well. Have someone check that out for you.
Yes, engine brakes are prohibited in this area.
Power brakes rely on vacuum or hydraulic pressure generated by the engine to assist with braking. If the engine fails, the power brake system will lose this assistance, making it harder to press the brake pedal. However, the brakes will still function as regular mechanical brakes, allowing the driver to stop the vehicle, albeit with increased effort.
A retarder is a device used to slow down or control the speed of a vehicle, typically in heavy-duty applications like trucks and buses. It works by providing additional braking force without relying solely on the traditional braking system, thereby reducing wear and heat generation. Retarders can enhance safety, improve stability during descents, and increase the longevity of the vehicle's brakes. Common types include engine retarders, hydraulic retarders, and electric retarders.
I would check the power brake booster