| 摘要 |
PROBLEM TO BE SOLVED: To provide a jack actuation control device of a working vehicle such that while a jack is grounded, the vehicle will not start to move by itself and that even if an operator inadvertently touches a control lever, the jack will not operate by mistake. SOLUTION: A control device 57 of an over-fence working vehicle has a brake actuation detecting sensor 59 for detecting whether or not the vehicle is being braked, a vehicle stop detecting sensor 61 for detecting whether or not the vehicle is stopped, a total boom contraction detecting sensor 63 for detecting whether or not a boom has contracted, and a controller 65. If the contracted state of the boom is detected by the total boom contraction detecting sensor 63 while the braked condition of the vehicle is detected by the brake actuation detecting sensor 59 and the stopped condition of the vehicle is detected by the vehicle stop detecting sensor 61, then the controller 65 puts a jack 7 into an actuatable state on the basis of their detection signals and the jack 7 is actuated at the press of a jack actuating switch 69 to stably support the vehicle.
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