| 摘要 |
PURPOSE:To eliminate the hydraulic pump mounting space in a transmission case, by fixing a sub-case on the outer wall of a transmission case of a tractor while driving a hydraulic pump through a drive gear in a sub-case. CONSTITUTION:A window 10a is made through a lower wall of a transmission case 10 underneath PTO clutch 6, while a sub-case 11 conducting through said wall 10a with said case 10 is fixed on the lower wall. A spline hole 14 is made through at least left and right shaft end sections of a drive gear 12 mounted in the sub-case 11 such that it will face toward the outside of the sub-case 11 through holes 11c, 11d made through the side walls 11a, 11b of the sub-case 11. The drive shaft 16 of a hydraulic pump 15 is provided fittably and dismountably to be coupled with the spline hole 14, then the hydraulic pump 15 is fixed to the side wall 11a or 11b through a bolt 18. In such a manner the rotation of a gear 19 at PTO input shaft 5 is transmitted through a counter gear 20 to a drive gear 12. |
