| 摘要 |
PURPOSE: To easily and speedily perform attachment and detachment by arranging the wheels of working equipment at specified positions so that the attaching pin means of a tractor frame can be engaged with the attaching bracket means of a working equipment frame. CONSTITUTION: While a wheel 194 of a tailer 90 is moved down, the wheel is positioned so that the center of gravity of the tailer can be located within the almost same vertical plane as the wheel, a tailer frame can be extended under a tractor chassis between rear wheels 14 of a tractor, and a link bracket 162 can be engaged with a pin 26. After the pin 26 and the bracket 162 are engaged, a link bracket 166 is engaged with a pin 28.
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