However, with sufficient accuracy, you can make the adjustment yourself. This requires a level ground. If it is not there, you can set the wheels of the car in a horizontal plane with the help of linings under them.
Before adjusting, check:
- air pressure in tires;
- backlash in bearings and ball joints of the suspension;
- serviceability of shock absorbers;
- steering wheel free play.
We fix the found faults.
The vehicle must be equipped with wheels and tires of the same size, without radial and axial runout. You can check the absence of beats visually by rotating the suspended wheels by hand.
Control and adjustment can be carried out both on a loaded and unloaded vehicle. It is recommended to carry out the installation of angles on a loaded car - 70 kg each on four seat cushions and 40 kg in the middle of the trunk.
We put the steering wheel in the neutral position, corresponding to the rectilinear movement of the car. Immediately before checking, we compress the car suspension 2–3 times, applying a vertical force of 40–50 kg to the bumpers.
We check and adjust the angles in the following sequence:
- angle of longitudinal inclination of the axis of rotation;
- collapse angle;
- wheel alignment.
At the new car (to TO-1) wheel alignment angles have the following meanings:
- camber: 0°30'+40'-30'
- Pitch angle: 4°+1°-1°30'
- convergence: 1–7 mm.
After the TO-1 (after 2-3 thousand kilometers) and during the further operation of the vehicle, the values of the wheel alignment angles should be: camber 0°30'±20' (0°5'±20'), longitudinal angle of inclination of the axis of rotation 4°±30' (3°±30'), convergence 2–4 mm (3–5 mm).