The gearbox converts the torque transmitted from the engine in magnitude and direction. This is necessary to ensure optimal speed and maneuverability of the vehicle, as well as for the most economical operation of the engine and for reversing the vehicle. In addition, the gearbox separates the engine and transmission when the vehicle is stopped and parked, and when it coasts with the engine running.
The gearbox parts are housed in the crankcase, which is bolted to the rear of the engine.
The torque from the engine through the clutch is transmitted to the drive shaft of the gearbox. The driven shaft of the gearbox transmits torque through the differential to the drive shafts. The gear is engaged by moving the synchronizer sliding clutch, as a result of which the gear is rigidly connected to the gearbox shaft.
The gearbox is a very complex unit; it is recommended to repair it in a specialized workshop, therefore, this section only shows the removal and installation of the gearbox.
To remove the gearbox, raise the vehicle and secure it in this position. It is also necessary to use a stationary jack.
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