Running the engine without a primedsmoke unit may cause damageProtoSmoke™ FluidProtoSmoke is the recommended fluid forM.T.H. products and can be used in othermanufacturers products as well. Choose from12 different scents: Christmas, Coal, Diesel, Wood Burning, Coffee,Eggs & Bacon, Vanilla, Candy Cane, Barbeque, Pipe Smoke,Cinnamon Roll, and Apple PieHeadlight Replacement InstructionsThe PS 3.0 headlights and other associated lights are small LEDs that require a lot lesspower and generate a lot less heat than incandescent bulbs, resulting in extremelylong life compared to the incandescent bulbs. The LEDs are not user serviceableIf you experience poor or no smoke output when the smoke unit is on and has fluid,check the wick to see if it has become hard, blackened, and unabsorbent around theheating element. Remove the body as shown on page 33. Remove the smoke unitinspection cover from the locomotive's body. After removing the chassis andinspection cover screws, lift the inspection plate away and inspect the wick. If it isdarkly discolored and hard, it should be replaced. When priming new wick add 40drops.RailKing Diesel Engine w/Proto-Sound® 3.037SD60