2011 Ford F450 Super Duty Crew Cab Owner Guide 4th Printing - Page 343

Roadside Emergencies On all two-piece flat wheel nuts, apply one drop of motor oil between the flat washer and the nut. WARNING: When a wheel is installed, always remove any corrosion, dirt or foreign materials present on the mounting surfaces of the wheel or the surface of the wheel hub, brake drum or brake disc that contacts the wheel. Ensure that any fasteners that attach the rotor to the hub are secured so they do not interfere with the mounting surfaces of the wheel. Installing wheels without correct metal-to-metal contact at the wheel mounting surfaces can cause the wheel nuts to loosen and the wheel to come off while the vehicle is in motion, resulting in loss of control. Inspect the wheel pilot hole prior to installation. If there is visible corrosion in wheel pilot hole, remove loose particles by wiping with clean rag and apply grease. Apply grease only to the wheel pilot hole surface by smearing a "dime" (1 square cm) sized glob of grease around the wheel pilot surface (1) with end of finger. DO NOT apply grease to lug nut/stud holes or wheel-to-brake surfaces. JUMP STARTING WARNING: The gases around the battery can explode if exposed to flames, sparks, or lit cigarettes. An explosion could result in injury or vehicle damage. WARNING: Batteries contain sulfuric acid which can burn skin, eyes and clothing, if contacted. 343 2011 F-250/350/450/550 (f23) Owners Guide, 4th Printing USA (fus)