ASME HST-3-1999 (R2010)

Within the general scope defined in Section 1, HST-3M applies to all new manually lever operated chain hoists used for lifting, pulling, and tensioning type applications. The specifications and information contained in this Standard apply to manually lever operated chain hoists of the following types: (a) ratchet and pawl operation with: (1) roller-type load chain (2) welded link-type load chain (b) friction brake operation with: (1) roller-type load chain (2) welded link type load chain. Manually lever operated hoists using wire rope as the lifting medium specially insulated lever hoists designed for handling high voltage lines are not covered by this Standard. This Standard is applicable to hoists manufactured after the date on which this Standard is issued. This Standard is not applicable to: (a) damaged or malufactioning hoists; (b) hoists that have been misused or abused; (c) hoists that have been altered without authorization by the manufacturer or a qualified person; (d) hoists used for lifting or supporting people.