TM 10-3930-671-10 Know The Truck Safety Decals Fan Warning Decal This safety decal is displayed on the cooling fan shroud of the radiator to warn of the danger of injury from  turning  fan  blades  when  the  engine  is running. Make  sure  that  you  keep  your  hands,  fingers,  arms,  and  clothing  away from a spinning fan.  Don’t stand in line with a spinning fan.  Fan blades can break at high speed and be thrown out of the engine compartment. Overhead Guard Conformance Plate This  plate  is  permanently  attached  to  the  inside  of  the  overhead  guard top to confirm that the overhead guard assembly design has been tested and conforms to the requirements of ANSI B56.1 safety standards. E-50