you place the tire on the mount dismount machine. there is a cone shaped pic that spins down on the machin to hold the rim down tight. Remove the valve stem valve (the little piece of metal in the middle of the valve stem) with a valve stem valve remover. when there is no air in the tire thin lift the de-beadier bar (located on the frond right) align it so it fits next to the rim. Press the foot petal and the breaker bar will lower de-beading the tire from the rim. release the petal, swing the arm out of the way. Now there is a wrench looking thing double ended and has a slit in the middle. Place the curved end in the de-beaded area and push the other end up and over the center of the wheel the slot in the tool go over the metal rod in the middle of the rim. pressing the pedal the bar will rotate sliding the tire off around the rim. once the outer part of the tire is off then do the same for the inner keeping the rim in place. now you have a bear rim.
soap the bead of the new tire and the rim itself. on the left side press the tire on the rim then use the tire iron again but the other end of it this time. Place it against the rim and press the peddle and it will swing around and and mount the bottom half of the tire then you repeat to get the top on. Now it should me mounted.
loosen the cone pice from the rim a little bit (not off) connect the air line to the valve stem and press the peddle to fill the tire you have to hold the tire in the middle of the rim. sometimes getting the tire to bead is the hardest part. once it beads watch the pressure you put in the tire. Add about 3 pounds extra and get the valve ready to be put back in the valve stem. When you remove the air line, air will come out until you get the valve in. after the valve is in then adjust the pressure of the tire.
BE CAREFUL IF CAN BE DANGEROUS USING THIS MACHINE IF SOMEONE IS THERE TO ASSIST YOU BY JUST WATCHING YOU AND GIVING YOU ADVICE THIS IS WHAT YOU NEED TO DO.
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