The top one is used to determine when the clutch pedal starts to depress, so the computer can turn off cruise before the clutch disengages. You want to make sure the stop on the pedal is fully depressing the switch while the clutch pedal is at rest.
For the bottom switch, you want to make sure that it is adjusted such that the clutch pedal travel fully disengages the clutch before the switch is fully depressed by the stop on the pedal.