A camshaft includes a carrier shaft to be mounted rotatably in a shaft axis and at least one cam pack axially displaceable on the carrier shaft. The apparatus has a protective outer surface to guard against one or more sharp edges or surfaces of the downspout elbow or extension from suffering or inflicting harm. The method further comprises providing a plurality of sequenced images, wherein each of the images is associated with at least one location by a geo-coding module configured to generate a geo-location object data sheet that associates sequential images with a corresponding location.