| 摘要 |
PROBLEM TO BE SOLVED: To eliminate shock due to side clutch operation. SOLUTION: In a combine so constructed that right and left side clutch brakes are selectively operated by one steering lever 58, a pair of transmission gears 23 and 23 engaged with the right and left axles are interlocked with each other through a hydraulic friction clutch 25, and the operating lever 58 and a variable pressure reducing valve 27 are linked with each other whereby pressure oil is supplied through the variable pressure reducing valve 27 to the friction clutch 25 to produce a first state of rectilinear moving, a second state where one side clutch is disconnected and the friction clutch 25 is in the slipping limited transmission state, a third state where the friction clutch 25 is in the limited transmission state and one side brake is operated to brake, and a fourth state where the friction clutch 25 is disconnected and the side brake is operated to brake in order with the tilting operation of the steering lever 58.
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