| 摘要 |
A bush cutter has a driving bevel gear housed in a first box constituting a part of a gearbox, and a driven bevel gear housed in a second box and engaging the driving bevel gear. The driving bevel gear is rotatably retained in a first bearing. The first bearing is screw-fitted into the first box movably in an axially longitudinal direction of the driving bevel gear. Rotation of the first bearing causes the driving bevel gear to move in the axially longitudinal direction to finely adjust the engagement of the driving bevel gear with the driven bevel gear.
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