what is a clutch brake?

http://wiki.answers.com/Q/What_is_a_clutch_brake_on_manual_heavy_duty_truck_transmissions hope thats what you wanted

 

A clutch brake basically is another vehicle control switch for me, especially when it comes to backing up and tight maneuvers and shifting.

 

Switch???
huh?? Now i am confused--please expain

 

He is calling it a switch because when you push the clutch pedal all the way down you disengage the clutch and activate the clutch brake but when only push the pedal half way down you only disengage the clutch and NOT the clutch brake. So it's there if you want to use it like a switch

 

you no sometimes I read a thred and the voices on my head scream "MOVE ON" BUT do I listen? NÖÓOÔOO

 

A clutch brake stops the inertial movement of the input of the transmission when the clutch pedal is depressed completely to allow the transmission to be moved from one gear to another !

 

Okieron, I think you are close, but not exactly. A clutch brake is to be employed ONLY when the vehicle is at a stop, otherwise, you are 'Deepstroking' the clutch. Which is how I got my handle. In school the simulator we used I constantly deepstroked the clutch. Its different out in the truck and you can tell how far you need to depress the clutch without engaging the clutch brake. A clutch brake is fragile. Should you deepstroke the clutch while the truck is in motion you can damage or cause premature wear to the clutch brake, making it harder to shift into gear at a stop. The movement of the truck keeps the parts of the trans in motion that you are trying to stop by employing the clutch brake.

Hope that helps, a little.