what is the life expectency of the blower on a Walker? im @ about 2800 hrs on my 01 MTGHS. im sucking up leaves and loose stuff pretty well, but its the grass where the tires ran on last weeks stripes that is having a hard time standing up to be cut. is the blower supposed to help do this? or is it just the blades job. here are some crappy pics. is my blower wore out?