| 摘要 |
A self-propelled fork lift truck comprises a working mechanism at the front end of the fork left truck, a revolving driver's stand, a driver's seat and a steering wheel mounted on the revolving driver's stand, a speed change gear having a plurality of speed shifting ratios for running in a forward direction and a plurality of speed shifting ratios for running in a backward direction, and a speed change gear controlling device. When the revolving driver's stand is turned facing the front end of the fork lift truck, the controlling device restricts the operation of the speed change gear to a first of the plurality of speed shifting ratios for running in the backward direction. When the revolving driver's stand is turned facing the rear end of the fork lift truck, the controlling device restricts the operation of the speed change gear to a first of the plurality of speed shifting ratios for running in the forward direction.
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