ASME B30.7 pdf download BASE- MOUNTED DRUM HOISTS Section 7-1.1: Load Ratings and Markings7-1.1.1 Basis. Hoist ratings are dependent uponsuch factors as applied power，amount of rope woundon the drum,drum size,and structural competence ofthe various hoist components and mounting methods. 7-1.1.2 Load Ratings. Load ratings shall be themanufacturer’s recommended single rope pull in pounds(kilograms) at a specified rate of speed on...