| 摘要 |
PURPOSE:To make the installation and maintenance of a hydraulic pump ever so easy, by installing a fulcrum shaft in a bearing wall for supporting a power transmission shaft or the like in a transmission case, and driving the armored type hydraulic pump via an intermediate gear supported on this fulcrum shaft. CONSTITUTION:A bearing wall 32 supporting each of three shafts 12, 25 and 29 via a bearing is installed as situated midway between an auxiliary transmission mechanism and a super-deceleration mechanism. And, an output gear 33 is situated at the transmission upper side of the bearing wall 32 and locked to the power transmission shaft 12 for an external power takeoff shaft. And, an intermediate gear 34 being engaged with this output gear 33 is supported on the fulcrum shaft 35 installed in the bearing wall 32. In addition, a hydraulic pump unit 31u provided with an input gear 36 interlockable with the intermediate gear 34 is inserted thereinto via the opening 4h formed in a side wall part 4a of a transmission case 4 and simultaneously engaged tightly to this case 4 with a bolt 37. With this constitution, the installation and maintenance of a hydraulic pump 31 are easily performable.
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