seade mehhanismide ja masinate käitamiseks vedeliku (hrl mineraalõli) vahendusel; koosneb pumpa käitavast mootorist, hüdroülekandest (hrl mahtülekandest) ning juhtimis- ja abiseadmeist
Hydraulic drive ... Where the main steering gear is hydraulically operated while the secondary steering is a manually operated hydraulic system, the piping of the manually operated system must be separate from that of the main installation. ... Where both the main and secondary drives are hydraulic, the respective pumps must be driven independently ...
