Patent ID: 8857549

Claim:
A mount structure for a control valve unit on a construction machine having working equipment, a body with the working equipment attached thereto, a hydraulic actuator for driving the working equipment and a hydraulic actuator for driving the body, and the control valve unit comprised of plural directional control valves arranged side by side for controlling the hydraulic actuators, respectively, said mount structure having a bracket for mounting the control valve unit thereon and being to be fixed on the body, wherein: the control valve unit comprises a first control valve unit, and a second control valve unit having plural directional control valves set at a greater arrangement pitch than an arrangement pitch of plural directional control valves included in the first control valve unit and formed larger than the first control valve unit, the bracket has a pair of hanging-member fixing portions and is used to mount thereon only one of the first control valve unit and second control valve unit although the first control valve unit and the second control valve unit can each be mounted on the bracket, and upon mounting the one of the first control valve unit and second control valve unit on the bracket, the one of the first control valve unit and second control valve unit is mounted on the bracket such that a barycentric position of the bracket with the first control valve unit mounted thereon and a barycentric position of the bracket with the second control valve unit mounted thereon are located on an imaginary line that connects the paired hanging-member fixing portions with each other.