The gearbox converts the torque transmitted from the engine in magnitude and direction. In addition, the gearbox serves to continuously disconnect the engine and transmission (for example, when a car is stopped).
The torque from the engine is transmitted through the clutch to the input shaft of the gearbox. From the secondary shaft of the gearbox, torque is transmitted to the drive shafts through the differential. The gear is engaged by moving the sliding synchronizer clutch, as a result of which the gear is rigidly connected to the gearbox shaft.
The differential serves to distribute torque between the wheels and allows the driven shafts to rotate at different angular velocities. With different coefficients of adhesion of the left and right wheels to the road surface, the ratio of torque on the left and right wheels is maintained. In this case, the wheel with the lower coefficient of adhesion begins to slip.
The gearbox is a complex unit and therefore it is recommended to have it repaired at a car service center. When removing and installing many parts, it is necessary to measure the clearances and adjust them if necessary using the appropriate shims and washers. If the gearbox is faulty or makes a lot of noise, it is advisable to have it repaired by a specialist or replace the gearbox, which can be significantly cheaper. However, some gearbox faults can be fixed without removing it from the vehicle.
(Data published on the website PeugeotBook.ru)
Despite all the difficulties, an experienced specialist can repair a gearbox in a garage, using special tools and performing the work sequentially, recording the completed operations step by step. When repairing a gearbox, it is necessary to use special pliers for removing snap rings, bearing pullers, an inertia hammer, a set of punches, a micrometer and a hydraulic press.
Before removing the gearbox, try to determine the gearbox malfunction as accurately as possible, which will make repairs much easier in the future.