I have taken my 4wheeler in soon to be the 3rd time. The brakes make a scraping noise...a very loud scraping noise! I am told they cant find anything wrong other than sand is getting in. They suggested that I wash the brake area down completely after each use and spray it with oil. Just wondering if anyone else has had this problem. I have never heard of this but I know nothing about 4 wheelers. I can't imagine anyone having to do this eachtime of use. Thanks for any help at all, very much appreciated as I am about to take it in for the 3rd time.