Originally Posted by DTSCDS

Yeah, you gotta get a helmet! (I don't care what anybody else says!!!!)
For learning to fix/adjust stuff YouTube is your friend. Just be careful at first to watch more than one video on a particular repair/adjustment. I have seen some folks that you can trust them on everything. But, I have also seen videos that show an absolute wrong way to do things. Watch more than one and see if they all agree before you tackle something. But, don't be afraid to get in there and diddle with stuff!