I don't have that pump - but FWIW,
(1) the picture of the pump on the website shows the lever flush (down) - which should be a neutral or open position.
(2) my Serfas pump and my Specialized pump both operate with the lever raised to close the seal.
(3) It's normal for the pump to be tight coming off the valve. For the rubber gasket to seal when the lever compresses it, it's got to be making contact even when it's open. Try using one hand to hold the wheel at the valve while you pull the pump head off with the other hand.
HTH (and that you get a reply from someone else who actually has that pump)



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