| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem of bed feeling in switching forward and backward moment in turning at shifting end. SOLUTION: Hydraulic forward-backward movement clutches 53, 54 are switched by operating a forward-backward movement switching lever 16 for switching forward-backward movement, the operating oil pressure of the forward-backward movement clutch is changed by a changing means 127, a means 115 for detecting a turning angle of steering bars 6 and the operating oil pressure changing means are connected to interlock, and when the steering bars are turned more than a preset angle, the operating oil pressure is increased.
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