For the Schwalbe Clik Valve, use the orange CLIK TEC pump head. Simply push the head onto the valve and it will click automatically into place.
For the other valve types, use the two openings on the opposite side. The labels are shown around the edge of the pump head:
- Insert Schrader valves into the opening marked Schrader.
- Insert Presta and Dunlop valves into the opening marked Presta.
Once you have placed the pump head onto the correct valve, you do not need to make any adjustments. Then push the locking lever upwards to secure the pump head. You can then start pumping straight away.