| 摘要 |
PROBLEM TO BE SOLVED: To provide an upper turning body capable of positioning a tank in the fastening orthogonal direction when assembling the tank.SOLUTION: An upper turning body 3 comprises a support mechanism 21 for supporting a side surface of a reducer tank body 18 arranged in a preset installation position and a fastening member 23 for fastening a reducer tank 15 to the support mechanism 21 side. A replenishment port 19 of the reducer tank 15 projects to the support mechanism 21 side from a left side surface 18b of the reducer tank body 18 supported by the support mechanism 21. The support mechanism 21 comprises a positioning surface 27d capable of contacting with the fastening orthogonal direction (the longitudinal direction) orthogonal to the direction for fastening the reducer tank 15 to the support mechanism 21 in a plan view to the replenishment port 19 of the reducer tank 15 arranged in the installation position. |
