ROLLING SHOVEL

摘要

PROBLEM TO BE SOLVED: To easily separate a lower structure from an upper revolving superstructure by detaching connecting pins from hydraulic cylinders without adopting means such as fusion cutting. SOLUTION: The upper revolving superstructure 2 is rotatably installed relative to the lower structure 1. The lower structure 1 and the revolving superstructure 2 are connected to each other by a rolling mechanism 3 having the hydraulic cylinders 33L and 33R. The hydraulic cylinders 33L and 33R are connected swingably to the lower structure 1 and the end parts of the connecting pins 35 are formed with tool engagement parts 35a. A tool is engaged with the tool engagement part 35a so that the connecting pin 35 can be rotated about its axis by the tool.