ASME HST-6:2020 pdf free download

ASME HST-6:2020 pdf free download.Performance Standard for Air Wire Rope Hoists.
hoist: a machinery unit that is used for lifting or lowering a freely suspended (unguided) load. hoist speed: the rate of motion that the load hook obtains while lifting a rated load.
hook suspended: suspension of the hoist from a trolley or rigid structure by means of a hook at top of hoist.
lateral hook travel: the lateral movement of the load hook between its position at the upper limit of travel and its position at the lower limit of travel.
lifr the maximum vertical distance through which the load hook can travel; it is the total hook movement between its upper limit of travel and its position when at the lower limit of travel (see Figure 6.0.2-1).
lifting devices, below the hook: devices that are not normally reeved onto the hoist ropes. such as hook-on buckets. magnets, grabs, and other supplemental devices used for handling certain types of loads. The weight of these devices is to be considered part of the load to be lifted.
limit device: a device that limits equipment motion or takes control of particular functions without action of the operator when a limiting condition is reached.
load hook: the hook used to connect the load to the hoist.
load, rated: the maximum load for which a hoist or trolley is designated by the manufacturer or qualified person. load, working: the external load applied to the hoist, including the weight of load-attaching equipment, such as shackles and slings.
load suspension parts: the means of suspension (trolley, hook, or lug), the structure or housing that supports the drum, and the drum, the rope, the sheaves, and the load block
lug suspended: suspension of the hoist from a trolley(s) or permanent structure by means of a bolt(s) or pin(s) through a rigidor swivel-type lug(s).
minimum radius: the smallest radius of the beam, measured to the centerline of the web of the beam, on which the trolley will operate.
normal operating conditions: conditions during which a hoist Is performing functions within the scope of the original design.
overload: any load greater than the rated load.
parts (Iinesl: number of lines of rope supporting the load block or hook
pitch diameter: the distance from center to center of a rope passing over a sheave or wound on a drum, measured across the diameter of the sheave or drum.
power transmission parts: machinery components, including the gears, shafts, clutches, couplings, bearings, motors, and brakes.