Front-loading hydraulic excavator

Details Front-loading hydraulic excavator Front-loading hydraulic excavator

E - Fixed Constructions

02

F

214/26

E02F 3/30 (2006.01) E02F 3/36 (2006.01) E02F 3/42 (2006.01)

Patent

CA 1121313

ABSTRACT A hydraulic excavator has a bucket actuating and control linkage comprising a boom pivotally connected at one end to a self- propelled vehicle, a stick pivotally connected at one end to the other end of the boom, and a bucket pivotally mounted on the other end of the slick. A pair of hydraulic cylinders for actuating the bucket are pivotally connected to the boom via a pair of bucket attitude control bellcranks, respectively. By adjustment of the angular position of the bucket attitude control bellcranks relative to the boom, as by another pair of hydraulic cylinders, the bucket can be conditioned for a level crowd attitude, crowd-to-carry at- titude, or crowd-to-dump attitude.

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