| 摘要 |
PROBLEM TO BE SOLVED: To provide a cleaner that can clean complicated portions having wall surfaces crossing as keels a broadside wall in holds, efficiently at small cost without large movement of a hydraulic shovel. SOLUTION: A hydraulic shovel supports a rotary drum 16 rotated by a motor 15 on its working element. The rotary drum 16 has a cleaning brush 17 at its front and another 19 at the side. The front cleaning brush 17 is removably attached to the rotary drum 16. The front cleaning brush 17 of the rotary drum 16 cleans front walls and the side cleaning brush 19 thereof cleans side walls.
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