Tractor`s power transmission system, has PTO transmission shaft with its rear end directly spline-fitted to one of transmission gears of PTO change speed mechanism, where gears are supported with cantilever structure by end cover

摘要

The system has a main drive shaft receiving power from an engine. A reverse and forward drive switching device is adapted to be disposed between the engine and a change speed device. A PTO drive shaft (16) is directly and coaxially coupled to a rear of the main drive shaft, and a PTO transmission shaft (17) is disposed rearwardly of and coaxially with the PTO drive shaft. A rear end of the transmission shaft is directly spline-fitted to one of two transmission gears of a PTO change speed mechanism (19). The gears are supported with a cantilever structure by an end cover.