| 摘要 |
A farm tractor with four-wheel drive has a speed change for a power takeoff shaft projecting from a rear portion of a transmission case for driving a work implement attached to the rear end of the tractor. This is mounted in the rear of the transmission case, and a main shaft receives output of the engine. A pinion shaft drives the rear wheels and a tran-smission shaft drives the front wheels and are mounted in the front half of the transmission case with minimum spacing between the three shafts. This permits the transmission case to be compact in the vertical as well as transverse direction and provides a large space in the tractor underbelly for at-taching a work implement.
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