How to adjust a spring loaded tensioner arm?

I am trying to replace the serpentine belt on my 1994 Chevy S-10 4X4 pickup. I had to replace the tensioner because the prior tensioner froze up. I have tried to put the tensioner in place, but the belt will not go all the way, it's way too tight. How would I fix this problem? How would I adjust the arm on the spring loaded tensioner so there won't be so much pressure on the other pulleys? Is there a special tool I need?How to adjust a spring loaded tensioner arm?On the back of the tensioner is a %26quot;tab%26quot; that goes in a hole where you bolt it on. When putting the belt on make sure you have it routed right. On some tensioners there is a 3/8 or 1/2 drive square to but a breaker bar or ratchet in. if it doesn't have that then just use a wrench that fits the bolt on the pulley and move the tensioner to put the belt on. sometimes it's easier to put the belt on the tensioner and leave something like the alternator pulley for lastHow to adjust a spring loaded tensioner arm?It's a pretty fair bet you installed the unit wrong. In most tensioners there is a pilot hole where a pin goes. Take it off and start over. Look for the hole and put the pin in it.How to adjust a spring loaded tensioner arm?In the center of the tensioner ther is a square hole that is either 1/2%26quot; or 3/4%26quot;. You need to put a breaker bar in that hole and put pressure on the tensioner so that the belt will slide over the pully on the tensioner.How to adjust a spring loaded tensioner arm?Also,double check the routing of the belt, if you still have the schematic on the top radiator hold down, follow it, there is more than one way to route the belt.Good Luck.How to adjust a spring loaded tensioner arm?chances are you have the wrong size belt or you have to replace the tensioner