Purpose of blocking of differentials

Blocking of interaxal and back differentials serves for increase of passableness of the car in cross-country conditions and simplification of movement on abrupt biases.

At movement the external wheel passes bigger distance in curves, than internal. Therefore wheels of one axis move with various speed, and that thus the car could move normally, the axial differential is necessary. The interaxal differential levels speed of rotation of power shafts of forward and back axes, and differential of a back axis – back wheels.

Blocking of interaxal differential

Prevents such situation, when wheels of one axis on slippery soil провертываются on a place while wheels of other axis motionlessly stand on neskolzsky soil.

At inclusion of blocking of interaxal differential on both axes the torque as forward and back axes become rigidly connected starts to arrive. The torque from the power plant is automatically redistributed on axes according to a soil condition under wheels.

Blocking of differential of a back axis

Rigidly connects back wheels so they rotate with identical speed. Blocking of differential of a back axis is possible only at the blocked interaxal differential.

NOTE At turn of wheels it is possible to replace shutdown of blocking of interaxal differential on very sensitive breakthrough. The reason of it is sharp decrease in size of tension in the transmission, arisen at the beginning of turn at the included blocking of differential. At the included differentials of a wheel "scrape" on soil at turn. It is appreciable by noise arising thus. The angle of rotation at the included blocking of differentials is essentially limited.

Inclusion of blocking of differentials

Reduce speed below 40 km/h.

Fig. 1.124 . The ESP key on the central console

Turn the button from «HIGH» position (fig. 1.124) through «LOW» position in a position of blocking of the corresponding differential.

The first on a button course the pictogram designates a position of blocking of interaxal differential, and following and the last – a position of blocking of differential of a back axis.

Button turn blocking of a certain differential only gets out. Process of inclusion and switching off of blocking of differential can demand some time.

If happens so that it is not possible to include or switch off blocking, clean a foot from a pedal of gas and move whenever possible directly, making thus easy movements of a wheel to the left-to the right.

When it is impossible to include blocking of differentials

NOTE By no means it is impossible to include blocking of differentials at movement on usual public roads and also when wheels slip, the car tow or check brakes at the roller stand. By no means it is impossible to include blocking of differentials at movement on usual roads and also when one of wheels slips. If to include blocking in the moment when the wheel slips, it is possible either drive breakage, or sudden and uncontrollable movement of the car. Besides, at once steering action will be limited.

ATTENTION At inclusion of blocking of differentials at movement on usual public roads and also when wheels slip, the car tow or check brakes at the roller stand, it is possible either drive breakage, or sudden and uncontrollable movement of the car.