COMBINATION MACHINE Russian patent published in 1995 - IPC

FIELD: road building and maintenance. SUBSTANCE: machine has base chassis 1 with tank 2 and pumping unit connected by pipelines with washing nozzles. To wash road members such as posts, guards and road signs machine has hydrodynamic washing equipment with high- pressure pump 3, hydraulic distributor 4 and hydraulic motor 5 and also manipulator with manifold 8 with nozzles 9 secured on manipulator end. In working position one or both turnable sections of manipulator get unfolded and washing liquid is delivered under pressure into manifold with nozzles. In travelling position manipulator sections are folded down. EFFECT: enlarged operating capabilities. 3 cl, 4 dwg