Attach hose to pump via inflation connection (marked INF). Note that the pump also has a deflation connection (marked DEF)
Select adaptor based on valve type and attach to hose
Fold down the base feet and attach the handle extensions
Move lever to double action for inflating twice as fast and begin pumping.
Continue pumping until you reach the required psi (bar) pressure, or until pump action becomes difficult. Use built-in pressure gauge to see progress. Note that when inflating a Boston Valve, the pressure gauge only reads on the upstroke or downstroke of the pump
To make pump action easier, stop pumping and move lever to single action. Continue pumping until you reach the proper pressure for your item