If the gap is more than 0.15 mm, adjust it in the following order:
unscrew the adjusting nut from the steering knuckle pin, install a new or used, but on a different car, nut and tighten it to a torque of 2 kgf·m, while turning the hub in both directions 2-3 times to self-align the bearings. An old nut cannot be used, as it is difficult to ensure the reliability of its locking. Then loosen the adjusting nut and tighten it again with a torque of 0.7 kgf·m, then loosen it by 20-25°and lock it by pressing the collar of the nut into the grooves at the end of the stub axle. After adjustment, the clearance in the bearing should be in the range of 0.02-0.08 mm. When adjusting the clearance, it should be taken into account that the direction of the thread on the left trunnion is right, on the right it is left.