| 摘要 |
PROBLEM TO BE SOLVED: To efficiently dispose an oil storage tank, to improve the degree of freedom of the arrangement of each equipment and to miniaturize a revolving super structure. SOLUTION: A battery 15 is positioned on the front side of an engine 8 and disposed on the right side of a tube 6A for a rotating cylinder 6, a hydraulic fluid tank 16 is disposed so as to cover the tube 6A base-end side of the rotating cylinder 6 and the upper side of the battery 15, and a fuel tank 18 adjoins the front side of the hydraulic fluid tank 16 and arranged so as to be crossed over the upper side of the front end side of the tube 6A of the rotating cylinder 6. Accordingly, the hydraulic fluid tank 16 can be disposed by utilizing a space on the upper side of the rotating cylinder 6 and the battery 15, and the fuel tank 18 can be arranged by utilizing a space on the upper side of the rotating cylinder 6. Thus, the battery 15, the hydraulic fluid tank 16, the fuel tank 18 or the like can be disposed efficiently on a revolving super structure.
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