To replace the lubricant, loosen the wheel bolts and, after hanging the front of the car, remove the wheels. Having unbent the petals of the locking plates, unscrew the brake caliper mounting bolts, remove the caliper and move it to the side without disconnecting the fluid supply hoses so that air and dirt do not get into the hydraulic drive system. In this case, the caliper should not hang on the pipelines. Puller 67.7801.9514 or a screwdriver remove the wheel hub cap. Unscrew the adjusting nut and remove the washer. Puller А.40005/1/9В presses the hub assembly with the brake disc, outer bearing and oil seal. Carefully, so as not to damage the oil seal, remove the hub from the steering knuckle. Wash the inner cavity of the hub and bearings. Before installation, bearing separators are filled with Litol-24 grease. The space between the outer rings of the bearings along the inner surface of the hub is filled with the same lubricant in the amount of 40 g, and 25 g of lubricant is placed in the hub cap before its installation. Then, carefully, so as not to damage the oil seal, install the hub assembly with the brake disc on the pivot of the steering knuckle, then the inner ring of the outer bearing, the washer and wrap a new (or used, but on a different car) nut and adjust the clearance in the bearings as described above.
Wheel balancing. Balance the wheels on stands. After balancing, the maximum permissible imbalance of the wheel assembly with the tire is 2600 g mm. Wheel imbalance is eliminated by balancing loaders, which are held on the rim by special springs. An unbalance of 2600 g.mm corresponds to a weight of about 15 g. It is not recommended to exceed the weight of the weights in each plane.