2004 John Deer Buck Utility ATV 500, 500EX and 500EXT Service Manual, Page 242Get this manual
After the job is completed, firmly depress the brake lever few times to bring the pads in contact with the discCheck for leaks and make sure the brakes operate normally before drivingThe pads must rest flat on the disk Brake discs no23 can be inspected without removing from the vehicleRaise vehicle and support it securelyRemove wheels and visually inspect disc surfaces for scratches or groovesMake sure to check both sides of discMeasure thickness of the discReplace disc if not within specificationsUsing hub puller, pull out wheel hub with discTurn the disc by hand and check warpage