R&M Materials Handling ELECTRIC CHAIN HOISTS LoadMate Chain Hoist General Operation Manual - Manual (Page 36)

Electric Chain Hoist Operator’s Manual/EN/11.30.10
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load, rated – The maximum load for which a hoist is designated by the manufacturer or a qualified person.
load block – The assembly of hook or shackle, swivel, bearing, sheaves, sprockets, pins, and frame
suspended by the hoisting load chain. This shall include any appurtenances reeved in the hoisting load chain.
load chain – See chain, load .
load suspension parts – The load suspension parts of the hoist are the means of suspension (hook or
lug), the structure or housing which supports the load sprocket, the load sprocket, the load chain, the sprockets,
and the load block or hook.
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 (lines or falls) – Number of lines chain supporting the load block or hook.
pendant station – Controls suspended from the hoist for operating the unit from the floor.
primary upper-limit device – The primary upper-limit device is the first limit device that will be activated
to control the upper limit of travel of the load block when a hoist is equipped with more than one upper-limit
device.
qualified person – A person who, by possession of a recognized degree in an applicable field or a
certificate of professional standing, or who by extensive knowledge, training, and experience, has successfully
demonstrated the ability to solve or resolve problems relating to the subject matter and work.
rated load – See load, rated .
reeving – A system in which chain travels around sprockets.
side pull – The component of the hoist pull acting horizontally when the hoist lines are not operated vertically.
slack fall stop – A device used to prevent the slack end of load chain from inadvertently being lowered out
of the load sprocket.