Broken Belt and Bad Idler Pulley

I unplugged the power cord first of all. Then I pulled the dryer away from the wall so I could get behind it and take off the small vent cover that had two screws holding it. Then I reached in and grabbed the old, broken belt and pulled it out. I reached in and disconnected the idler pulley off of the metal stud that it slid onto and then disconnected the spring off of it. After receiving the new parts I took the new idler pulley and reattached the spring to it and then attached the metal housing to the metal stud where the slot was at. I went to the front of the dryer and took the screws out of the top of the door housing pried the door housing away from the top of the dryer about 8". Also I opened the door of the dryer where I took the new belt and put it around the dryer drum as far as I could get it towards the back. Then I went to the back of the dryer. I put my hand into the vent hole and grabbed ahold of the belt and pulled it all the way towards the back where the old belt used to ride on the dryer drum. Then I pulled all the slack and put the belt over on the pulley that was on the motor. After that I pulled the idler pulley back far enough to position the belt on the pulley and that caused tension on the belt. I then put the vent cover back in place on the back of the dryer and put the two screws in it to hold it. I went around to the front and closed the door on the dryer and put the front housing back into place. After that I put the screws into the top of the front housing. The job was complete so I plugged in the dryer to test it and everything worked fine.