Joe Blow Pump Maintenance My Top Peak Joe Blow floor pump has been getting harder and harder to pump. I bought the high end model so that my 94 lb wife could pump up her own tires, but it has gotten to the point where I can barely get my own tires to 110 psi. 

Is there some maintenance that I'm supposed to be doing on the pump?

I found a rebuild kit online, is that the ticket to making it work better?
What precisely is wrong with it?  If it's got high friction when you work the pump without it connected then working the right kind of lube into the cylinder would do the trick.  (Not sure what the "right kind" would be, but definitely NOT regular oil.  Probably either a glycerine product or a silicone product.)

If it's leaking air back through the cylinder then lube might help, or you may need a new "leather" (which is no doubt plastic/rubber).  

If it's leaking through the "chuck" that fits on the stem then some lube there may help, or a new gasket.