Charger function designed to help seat tubeless tires onto rim. Sealant can be put in tire prior to use or after tire is seated through valve core! 

Foot lever horizontal= charger engaged

Foot lever vertical = regular pump engaged

1) Lower the foot lever to horizontal position

2) Pump to desired PSI for tubeless seating / inflation. Will get harder as you pump more!

3) Lock pump chuck head onto open valve

4) Raise foot lever to vertical position

5) If tire is not seated all the way, continue to pump quickly or repeat process til tire is seated completely.

6) Remove chuckhead once done- air will still be coming out of pump and thats okay!

Please note:

1) If rim or tape is damaged, core not installed properly or tire is not positioned correctly, loud noises or tire damage might occur. If you are uncomfortable with putting on your own tire, please see a professtional bike shop service to help with maintenance.

2) We are not responsible for mis use or damage to bike or tire caused by pump not being used correctly.

3) Removing the chuckhead, there will be air coming from the pump. It is not leaking from your tire unless there is an unrelated issue with valve leaking air- please seek professional bike service for help with this.