| 摘要 |
PROBLEM TO BE SOLVED: To have limiting speed observed without lowering cargo carrying performance by providing a fork lift with speed-limited outdoor and indoor running modes as a running mode other than a cargo operation mode. SOLUTION: According to switching of an ultrasonic sensor 4 which detects whether a vehicle is located indoors or outdoors and cargo lever switches 34, 35, solenoid valves 2, 3, and negative pressure actuators 18, 19 are actuated selectively to set spring tension of a governor spring 13 to one of the three levels. The spring tension is set to the highest level during cargo operation, and to a low level during indoor running, and to the middle during outdoor running. In any case, the maximum engine speed according to the strength of the governor spring 13 is ensured.
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