I have a 2001 murray riding mower model # 405014x92a I need an illustration on how to put the belt that runs the blades it has 4 pullies the belt is too loose and falls off when I go to the #3 level for the blade.. Yes I am a women.. it has a belt on now that is only 3 yrs old.is there a way to tighten something.. help...

Hi,
My guess is you have a bent belt retainer. I will attach the parts breakdown and a link to a similar machine's owners manual; refer to page 31 in it.http://dl.owneriq.net/4/4d0f73be-377c-41aa-a155-255523730e5d.pdf
Peace,
Clarke