PROBLEM TO BE SOLVED: To provide a work vehicle capable of determining properly a neutral position of a speed change operation pedal to a neutral position of a static oil pressure stepless speed change device, for achieving efficiency and simplification of assembly works.SOLUTION: An operation input part 65 of a speed change operation pedal 35 is arranged on a lateral outside position of positions of a left/right pair of main frames 10A in a machine body lateral direction, an operation output part 63 of the speed change operation pedal 35 is positioned on a lateral inside position on an opposite side of the lateral outside position where the operation input part 65 is provided, sandwiching one main frame 10A out of the left/right pair of main frames 10A therebetween, a linkage rod 64 for transmitting step-in operation of the speed change operation pedal 35 to the static oil pressure type stepless speed change device is coupled to the operation output part 63, and in a state in which the static oil pressure stepless speed change device is operated to the neutral position, on one main frame 10A on a position corresponding to a coupling position between the linkage rod 64 and the operation output part 63, a neutral reference hole 10C capable of accessing the coupling position from a lateral outside of the one main frame 10A is formed.SELECTED DRAWING: Figure 5COPYRIGHT: (C)2020,JPO&INPIT【課題】静油圧式無段変速装置の中立位置に対する変速操作ペダルの中立位置を的確に定められるようにして、組付け作業の能率化、簡素化を図る。【解決手段】 変速操作ペダル３５の操作入力部６５が、左右一対の主フレーム１０Ａの存在箇所よりも機体左右方向での横外側箇所に配設され、変速操作ペダル３５の操作出力部６３が、左右一対の主フレーム１０Ａのうちの一方の主フレーム１０Ａを挟んで、操作入力部６５が位置する横外側箇所とは反対側の横内側箇所に配設され、変速操作ペダル３５の踏み込み操作を静油圧式無段変速装置に伝える連係ロッド６４が、操作出力部６３に連結され、静油圧式無段変速装置が中立位置に操作されている状態における、連係ロッド６４と操作出力部６３の連結箇所に対応する位置の一方の主フレーム１０Ａに、一方の主フレーム１０Ａの横外側から連結箇所にアクセス可能なニュートラル基準孔１０Ｃが形成されている。【選択図】図５
