| 摘要 |
PROBLEM TO BE SOLVED: To provide a turning driving device capable of accurately performing oil inspection of lubricant right after operation completion of the turning driving device, and a turning speed reducer.SOLUTION: A shovel includes a turning motor and a turning speed reducer reducing rotation of the output shaft of the turning motor. The turning speed reducer includes: a first gear mechanism; a first gear case housing the first gear mechanism; a first oil detection pipe disposed in the first gear case; a first communication part communicating the inside of the first gear case with the first oil detection pipe; and a second communication part connecting the position of the first gear case higher than a position at which the first communication part is connected, with a high position of the first oil detection pipe. |
