5- Place the tube back in the tire starting at the area of the valve stem. Center it carefully or you will risk damaging the stem and ruining the tube. Work the tube all the way into the tire and then begin to work the bead back onto the rim. You can do most of this by hand and complete the job using the tire irons, but be sure to not pinch the tube in the process. You may have to wrestle a bit to get the last bit of bead onto the rim.
Some pumps require a great deal of energy to get a decent air pressure.
You may need an adapter if you have the Presta system to engage it with the pump. The adapter is usually placed on the stem after the stem valve is turned loose. 8- Replace the tire onto the bike and check the brake cables and alignment of the tire on the dropouts and retighten everything. 9- Go check it out and ride. It may be O.K. or it may still loose air again after a few hours or days.