Remove dust cap from head of pump and extend the hose fully.
Unscrew the orange cap.
Lift the lever which should push out the rubber gasket far enough to be able to remove it by hand.
(If lifting the handle doesn't push it out far enough you can also tap the pump head into your hand and the internal gasket should fall right out)
Using the images below as a guide, re-arrange the rubber gasket and plastic insert into the order required for your valves - whether they are Presta or Schrader.
Now that you have them in the correct order, re-insert the rubber gasket and plastic insert into the pump head.
Lower the thumb lock lever back into closed position, making sure the gasket is inserted fully before screwing the orange cap back on.
Your pump is now ready to use!
Now Go. Ride Somewhere.
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