1·Slewing mechanism ;
回转机构；
2·The slewing mechanism consists of hydraulic motor and worm speed reducer.
回转机构由液压马达及蜗轮蜗杆减速器组成。
3·Up-loading System: Boom system, Rotary table, Slewing mechanism, Fixed turret, Landing leg.
上装组成部分：臂架系统、转台、回转机构、固定转塔、支撑支腿等。
4·There are hoisting mechanism of crane, slewing mechanism, the luffing mechanism and metal structure selection in this article.
设计主要包括起重机的起升机构、回转机构，变幅机构及金属结构的选择。
5·The hoisting, derricking and slewing mechanism, the extension and contracting of booms, the setting down and back of outriggers, all are driven hydraulically.
该机的起升、变幅、回转、吊臂伸缩及支腿收放等机构，全部采用液压驱动。
6·Up-loading System: Boom system, Rotary table, Slewing mechanism, Fixed turret, Landing leg. Main function: Complete the concrete delivery and placing which support the vehicle to ensure its stability.
上装组成部分：臂架系统、转台、回转机构、固定转塔、支撑支腿等。主要作用：完成混凝土的输送并支撑整车，保证其稳定性。