My belt is to loose and squeels occasionally. Ac quits working in 10 minutes or so. I see no way to adjust that belt as the idler is behind the muffler. I can't even see any adjustment from any angle. Can anyone tell me how to adjust this belt. I have looked on line and on you tube, they show adjusting, BUT they are not on a L4330 which is obvioiusly different than the pictures on line. Surely I don't have to remove the muffler just to adjust the belt?