How do you replace clutch pedal return spring on kenworth w900?

To replace the clutch pedal return spring on a Kenworth W900, first, ensure the vehicle is safely parked and the engine is off. Remove any necessary panels or covers to access the clutch pedal assembly. Disconnect the old return spring from the clutch pedal and the chassis, then install the new spring by attaching it to the same points. Finally, reassemble any removed components and test the pedal for proper function.