To provide a hydraulic device of a hydraulic traveling type machine capable of shortening an auxiliary pump suction line to decrease a pipe line pressure loss and facilitating the management thereof in the hydraulic device mounting a main hydraulic pump on the rear side of an engine and having a constitution mounting the auxiliary pump on a position on a little side to the front in the engine.
The main hydraulic pump driven by the engine is mounted on the rear side of the engine, and in the hydraulic device of the hydraulic traveling type machine mounting the auxiliary pump driven by the engine on the position on a little side to the front in the engine, suction piping to the auxiliary pump is connected to return piping to a hydraulic oil tank from an oil cooler placed on the front side of the engine.
Ichiro Suzuki
Hirohiro Ichimura
Kazunori Satake
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