Adjusting the camber angles of the front wheels using the HPA device

img19Adjusting the camber angles of the front wheels using the HPA device. We control and, if necessary, equalize the pressure in the tires to the value 1,6 kG/cm2, - Raise the front of the vehicle upwards and check and mark on each wheel the place of the maximum runout of the rim edge with the help of a sensor. - Place the rotary plates in the stands in the middle position, then immobilize them with the knobs. Place the pads under the front wheels of the vehicle and lower the wheels set to drive straight ahead on them, and this way, to maximize rim edge runout, marked e.g.. chalk, was in the horizontal plane, passing through the center of the circle. Surface, where we measure the angles of the wheels, it should be well leveled. Then place two boards with the thickness of the feet under the rear wheels. We prevent the wheels from spinning, using a special device for this purpose placed on the brake pedal or by turning the eccentrics of the side brake shoes in the front wheels. We release the immobilization of the rotary plates with the knobs, and then lightly attach the HPA to the rim of the wheel with the upper arm. We rotate the head scale to a position parallel to the car's longitudinal axis. We set the pointer on the zero of the stationary scale with the knob. By moving the HPA device around the circumference of the wheel rim, we set it to the position, at which the bubble of the spirit level will be in the middle (between the dashes), then tighten the upper arm clamp. Then we rotate the instrument head 90 ° to position. We turn the knob, we bring the spirit level to the central position of the air bubble and read the pointer deflection angle on the fixed scale. The camber angle is positive, if the angular value read is on the half of the scale facing the vehicle (wheel swiveled out of the car). - Similarly, we carry out the measurement on the second wheel. When we find an unevenness of tilt angles greater than 1 °, we carry out the regulation. To do this, loosen the locknuts and nuts securing the spring stirrups. By turning the hexagonal head of the adjustment eccentric, we move the spring transversely to the vehicle axis, leading to even camber of the wheels. As the camber angle of one wheel increases, we simultaneously decrease the camber angle of the other wheel. After setting it at the right angle, we control the inclination of the second wheel, and then tighten the nuts and locknuts.