The clutch linkage for this purpose is shown in figure.
On pressing the clutch pedal, the shaft A turns, which moves the fork lever and then through shaft B, actuates the release fork to press the thrust bearing.
This movement is further conveyed to clutch levers to disengage the clutch.
Generally, mechanical leverage from 10:1 to 12:1 is employed that would require a pedal force of about 100 to 120 N when using travel of 75 mm.
When the clutch pedal is pressed, The thrust bearing is not pressed immediately.
Rather a part of the pedal movement is purposely kept idle.
This is done to avoid a rapid wear of the thrust bearing and the clutch plates and is called clutch free pedal play.
Usually this is kept about 25 mm at the pedal.
0 Comments