2003-2006 Kawasaki KFX400 service manual, Page 191Get this manual
CHASSIS
REAR WHEEL HUB Remove the rear wheel( 6-10) Remove the cotter pin and loosen the wheel hub nut by applying the rear brake Remove the wheel hub nut and washer Remove the wheel hub
INSPECTION AND DISASSEMBLY
DUST SEAL Inspect the dust seal lips for wear or damegeIf any damages are found, replace the dust seal with new one