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Construction and Function of Gear Shifting Mechanisms.
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Gear Shifting Mechanisms
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Double-meshing prevention mechanism
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This mechanism prevents possible shifting into two gears at the same time. When two shift forks are moved at the same time, they catch during selecting and the gears are double-meshed.
As a result, the gears do not turn, the vehicle acts as though the brakes have been jammed on, and the tires lock up causing a very dangerous situation.
The shift fork lock plate is prevented turning by a bolt which allows the shift and select lever shaft to slide only in the select direction. |
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