FUNCTION KICK-OUT A device that disengages certain crane functions whose movement could cause overload or two-blocking.
HEIGHT The vertical distance from the ground to the tip of the boom or attachment.
HORIZONTAL Parallel to the horizon.
INFORMATION SCREEN A display that gives information supplemental to the information on the pictograph.
INTEGRATED CIRCUITS A tiny complex of electronic components and connections on a small slice of material (such as silicon).
JIB Something attached such as a lattice fly or jib on a crane boom.
MANUAL SECTION The tip section of the main boom that can be telescoped independently of the other sections.
MICROPROCESSOR A computer processor contained on an integrated chip.
MOMENT The product of force and distance to a particular axis or point.
OPERATOR ALARMS Alarms that can be set by the operator, which provide working limits additional to the chart limits.
OUT OF DUTY A point which is either longer than the longest permitted radius or lower than the lowest permitted angle on a capacity chart
OUTRIGGER (ORs) A support projecting from a main structure used to provide additional stability.
OVERLOAD The point at which the actual load exceeds the rated capacity of the crane.
PARTS OF LINE The number of parts of hoist rope between the upper and lower blocks.
PICTOGRAPH A pictorial representation of the crane.
POINT OF LIFT The location of the hoist rope for the current lift e.g. main boom, auxiliary head or jib.
PRE-ALARM The point at which the actual load is 90% of the rated capacity of the crane.
PRESSURE Hydraulic pressure in the boom hoist cylinder
RADIUS The horizontal distance from the centerline of rotation to the center of the hook.
RATED CAPACITY The lifting capacity of a crane, as determined by the published capacity chart.
RATED CAPACITY The load that a crane can safely handle based on factors such as strength, stability, and rating.
RATING
A factor determined by legislation that limits the proportion of the capability of the cranes that may be utilized in a lifting operation. Usually expressed as a
percentage of strength or stability.
REEVING A rope system in which the rope travels around drums and sheaves.
ROPE LIMIT The maximum permitted single line pull determined by the construction and diameter of a wire rope.
ROPE LIMIT A condition that occurs when the type of rope and the parts-of- line in use restrict the capacity of the crane.
SENSOR A device that responds to physical stimulus and transmits a resulting impulse.
SHEAVE A grooved wheel or pulley.
SLEW OFFSET The horizontal distance from the boom pivot to the center of rotation
STOWED ATTACHMENT An attachment usually stowed on the main boom when not in use.
UPPERSTRUCTURE The structural part of a crane above the carrier, usually rotating.
SWING The rotation of a crane upper around its center line.
SWING ALARMS Audible alarms occurring when the upper structure swings into areas defined by the operator with the use of Operator Alarms.
SWL (%SWL) Percentage of safe working load. The proportion of the crane capacity which is being utilized at any one time expressed as a percentage of rated capacity
TRANSDUCER
A device that is actuated by energy from one system and converts this to another form for use by a different system (as a loudspeaker, that is, actuated by
electrical signals and supplies acoustic power).
RT500
Operating Instructions
106 REVISED:
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