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Crane Glossary
a b c d e f g h i j k l m n o p q r s t u v w x y z
ABNORMAL OPERATING CONDITIONS:
Environmental conditions that are unfavorable, harmful or detrimental to or for the operation of a hoist, such as excessively high (over 40 deg. C) or low (below -20 deg. C) ambient temperatures, corrosive fumes, dust laden or moisture laden atmospheres and hazardous locations.
ADJUSTABLE OR VARIABLE VOLTAGE:
A method of control by which the motor supply voltage can be adjusted.
AUTOMATIC CRANE:
A crane which, when activated, operates through a preset cycle or cycles.
AUXILIARY HOIST:
A supplemental hoisting unit usually designed to handle lighter loads at a higher speed than the main hoist.
AUXILIARY GIRDER (OUTRIGGER):
A girder arranged parallel to the main girder for supporting the platform, motor base, operator’s cab, control panels, etc., to reduce the torsional forces such a load would otherwise impose on the main girder.
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