Abstract： ASME B30.2:2011 pdf download.Overhead and Gantry Cranes. servsceplatftrns: a means provided for workers to perform maintenance, inspections, adjustments, and repairs of cranes. shall: this word indicates that a rule is mandatory and must be...

ASME B30.2:2011 pdf download.Overhead and Gantry Cranes.

servsceplatftrns: a means provided for workers to perform maintenance, inspections, adjustments, and repairs of cranes.

shall: this word indicates that a rule is mandatory and must be followed.

sheave: a grooved wheel or pulley used with a rope to change direction and point of application of a pulling force.

sheave, nonrunninç (equalizer): a sheave used to equalize tension in opposfte parts of the rope. Because of its slight movement, it is not termed a running sheave. sheazk’, running: a sheave that rotates as the load block is lifted or lowered.

should: this word indicates that a rule is a recommendation, the advisability of which depends on the facts in each situation.

side pull: the portion of the hoist pull acting horizontally when the hoist lines are not operated vertically.

sills: horizontal structural members that connect the lower ends of two or more legs of a gantry crane on one runway.

slash (I): a slash (I) denotes and/or and indicates that two words are to be taken together or individually.

spar:: the horizontal distance, center to center, between runway rails.

a device to limit travel of a trolley or crane bridge. This device normally is attached to a fixed structure and normally does not have energy-absorbing ability

switch (valve): a device for making, breaking, or changing the connections in an electric, hydraulic, or pneumatic circuit.

switch, emergency stop: a manually actuated switch to disconnect power independently of the regular operating controls.

switch, limit: a device that is actuated by the motion of a part of a power-driven machine or equipment to alter or disconnect the electric, hydraulic, or pneumatic circuit associated with the machine or equipment.

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