Hi all I need some advice please my sister in law has had problems with her drive belt, it snapped a few weeks ago and a friend replaced this for her but since then the belt keeps falling off, I had a look yesterday and noticed the drum pulley was loose and wobbling all over , I tightened this and re seated the belt, I then noticed the belt moving to the rear of the pulley, on a test cycle it worked ok but once it went onto a fast spin the belt again came off, any suggestions will be greatly appreciated, I was wondering wether the pulley has somehow become buckled ? best regards Dave H