| 摘要 |
PROBLEM TO BE SOLVED: To reduce the length of piping between hydraulic equipment so as to improve the maintainance of the equipment by concentrationwise mounting a main hydraulic equipment part such as a hydraulic valve constituting a hydraulic control mechanism controlling working condition of a tractor to a main machine body rearpart frame rearward of a driver's seat. SOLUTION: A machine body rear frame 21 is formed out of a cabin mounting support 19 provided at a rear end of a chassis frame 3 of a tractor and a working machine elevation support frame 20. Rearward of a hydraulic oil tank 7, i.e., a left side rear part of a machine body, hydraulic equipment such as a working machine control valve 22, HST operation valve 23, oil filter 24 and working machine elevation control valve 25 are concentrationwise mounted. The valve 25 is disposed at almost a center of the width of the machine body so that an operation knob for elevation control can be taken out forward from the lower of the driver's seat. A hydraulic oil takeout valve 33 is disposed in a right space of the machine body.
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