General information about manual transmission

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 reversing of 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.

Torque from the engine through the clutch is transmitted to the input shaft of the gearbox. The output shaft of the gearbox transmits torque through the differential to the drive shafts. The gear is switched on by moving the sliding clutch of the synchronizer, as a result of which the gear is rigidly connected to the gearbox shaft.

The gearbox is a very complex unit and must be repaired in a specialized workshop, so this manual only covers the removal and installation of the gearbox.