Camber is the angle at which the planes of the wheels deviate from the vertical. Camber is called positive when the upper edges of the wheels are deflected outward from the vertical. Otherwise, one speaks of a negative collapse. Camber adjustment is not possible.
The angle of longitudinal inclination of the axis of rotation of the wheel is the angle by which the axis of rotation of the wheel is deflected from the vertical in the plane of the disk. The angle is considered positive when the axis is tilted backwards by the upper end. This parameter is also not subject to adjustment.
Convergence is the amount by which the distances between the front and rear edges of the inner sides of the rims of the wheel disks differ. With positive convergence, the posterior edges of the disks are spaced wider than the anterior ones, and vice versa. Adjustment of the convergence of the front wheels is carried out by adjusting the length of the steering rods by retracting or screwing on the outer tips. The toe of the rear wheels is not adjustable.
The lateral tilt angle of the wheel axis is the angle between the vertical and an imaginary line drawn through the suspension strut mounts when looking at the car from the front or rear. Again, there is no adjustment.
Examination
Due to the need to use precision equipment to measure the geometry of the suspension, the verification and adjustment of parameters should be entrusted to a workshop specialist.
Adjustment of a convergence of forward wheels
1. Checking the convergence is done by measuring the distance between the front and rear edges of the inner rims of the wheel disks. Adjustment is carried out by adjusting the length of the steering rods.
2. For the purity of the measurements taken, the car must have a net weight, i.e. be unloaded with a full fuel tank.
3. Before adjusting, make sure that the vehicle is equipped with the correct size wheels, the tires are inflated to the correct pressure, the rims are not bent, the wheel bearings are not worn, and the steering gear is not loose. Eliminate all identified problems and violations.
4. Park the vehicle on a level, hard surface. Straighten the front wheels, then rock the car body front and rear to shrink the suspension components. Release the parking brake and roll the vehicle back 1 m, then return it to its original position - this should remove any residual stress from the suspension and steering components.
5. Measure the distance between the front edges of the inner sides of the front wheel rims at hub height, then repeat the measurement, this time measuring the distance between the rear edges of the rims. The measurement results must differ from each other by the value specified in the Specifications (the rear edges of the wheels should be spaced wider than the front).
6. If toe adjustment is necessary, apply the parking brake, then jack up the front of the vehicle and place it on jack stands, turn the steering wheel all the way to the left and count the number of exposed threads from the outer end of the left tie rod. Turn the steering wheel to the right and repeat the measurement for the right traction. If the measurement results for both rods are the same, the toe-in is corrected by turning on/off the outer ends of the rods by the same number of turns. Otherwise, the existing difference must be compensated for in the adjustment process.
7. First, clean the threads at the ends of the tie rods. In the presence of corrosion, moisten the rods with a special softening compound. Loosen the outer bands securing the steering gear protective covers, pull them back and stuff grease inward to prevent the covers from twisting when the rods are rotated.
8. Arm yourself with a flatness gauge and scriber to mark the position of the tie rods in relation to your outer tips, then fix the rods and completely loosen the locknuts.
9. Adjust the overall length of the rods. Rotate the rods with an open-end wrench, worn on specially provided flats. Reducing the length of the rods (screwing them into tips) will result in reduced wheel alignment.
10. When finished adjusting, secure the link rods and tighten the end cap locknuts to the correct torque. Check that the tip pivots are seated correctly in their sockets and count the number of exposed threads on the rods of both rods. If the results of counting for one boom differ from the results of the other, then the adjustment was made unevenly and one of the wheels, when making turns, may cling to the wheel arch. In addition, the symmetry of the steering wheel landing on the column shaft will be broken.
11. If the length of both rods is the same, lower the vehicle to the ground and repeat the toe-in test. Repeat the adjustment if necessary. Having achieved a satisfactory result, finally tighten the lock nuts of the ends of the rods with the required force, and check the correct fit of the protective covers and secure them with bandage bands.
Checking the parallelism of the rear axle installation
A - Center of the rear axle mounting bracket; B - Guide holes in the front subframe
1. The possibility of adjusting the geometry of the rear suspension on cars of this brand is not provided, however, it is important to make sure that the rear axle is parallel to the front subframe. To perform this check, it is best to use a special branded jig manufactured by Skoda.
2. Chock the front wheels, then jack up the rear of the vehicle and place it on jack stands.
3. Measure the distance from the rear edge of the front subframe to a line drawn through the centers of the rear axle mounting brackets. This distance must be the same on both sides of the vehicle. otherwise, the parallelism of the installation of the rear axle is broken and an adjustment is required.
4. To make adjustments, loosen the axle mounting bracket fixing bolts and move the brackets accordingly. Having achieved a satisfactory result, tighten the fasteners with the required force.
5. Make sure the adjustment is correct, then lower the vehicle to the ground.