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Key TermsAccident: Harmful event that is unexpected or without apparent cause.

Act: As a statute, decree, or enactment resulting from a decision by a legislative body.ANSI: American National Standards Institute.

Block: Sheaves or grooved pulleys in a frame with a hook, eye, and strap.

Boom: An inclined spar, strut, or other long member supporting the hoisting tackle.

Boom angle indicator: An accessory device that measures the angle of the boom base sectio

horizontal load and the weight of the object being lifted which includes load blocks and

rigging, boom attachments, and ancillary attachments.

Boom stops: A device used to limit the angle of the boom at its highest position.

Brake: To slow or stop motion by friction or power.

Counterweight: Weights used for balancing loads and the weight of the crane in providing st

Crane: Consists of a rotating structure on rubber tires or crawler treads used for lifting and lo

horizontally.

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Key TermsDeck: The revolving superstructure or turntable bed.

Drum: The spool or cylindrical member around which cables are wound for raising and loweHoist: Used to lift and lower load.

Jib: Extension attached to the boom point to provide added boom length for lifting specified

OSHA: Occupational Safety and Health Administration.

Outriggers: Support members attached to the cranes carrier frame that are used to level an

crane.

PCSA: Power Crane and Shovel Association.

Pendants: Stationary wire ropes used to support the boom.

Radius: The horizontal distance from the axis of the rotation of the cranes superstructure to

suspended load.

Standards: Measure of comparison for quantitative or qualitative value; a criterion.

Superstructure: The rotating frame, gantry, and boom or other operating equipment.

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The employer should designate a cto inspect all of the machinery and

before and during use to ensure th

within safe working parameters. Al

must be promptly repaired, and de

replaced before the machine can b

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