During each maintenance and repair, it is imperative to check the condition of the protective covers of the ball bearings of the suspension, the covers must not be mechanically damaged.
Find out if there are any cracks on the suspension parts or traces of rubbing against road obstacles or the body, deformation of the levers, the stabilizer bar and its struts, the body front parts in the places where the suspension units and suspension parts are attached.
Check the condition of the rubber-metal joints, rubber pads, ball joints of the suspension, as well as the condition (draft) upper supports of telescopic suspension struts.
Rubber-metal hinges and rubber pads must be replaced in case of ruptures and one-sided buckling of rubber, as well as when cutting their end surfaces.
The arrangement of elements of a forward suspension bracket on the car is shown on fig. 4.2.
Pic. 4.2. The location of the elements of the front suspension on the car: 1 - cross member of the front suspension; 2 - front hinge (silent block) front suspension arm; 3 - rear hinge (silent block) front suspension arm; 4 – a rack of the stabilizer of cross stability; 5 - shock absorber; 6 – front suspension arm; 7 – rotary fist; 8 – a spherical support of a rotary fist
On rubber suspension parts are not allowed:
- signs of rubber aging;
- mechanical damage.
On rubber-metal hinges are not allowed:
- signs of aging, cracks, one-sided bulging of the rubber mass;
- separation of the rubber mass from the reinforcement.
Replace defective parts.
Attention! Pay special attention to mechanical damage (deformations, cracks, etc.) suspension components, especially control arms.
1. Check up a condition of protective covers of spherical support. If the boots are damaged, replace the ball joint assemblies.
2. Shaking the wheel in a vertical plane, check the ball joints for play. If there is play in the ball pins, replace the bearings.
Note. When swaying the posted front wheel, it is difficult to distinguish play in the hub bearings and in the ball bearings. Ask an assistant to press the brake pedal: if in this case you feel play, then the ball bearings are faulty.
3. Check for backlash front..
4.... and rear silent blocks in the places where the levers are attached to the suspension cross member.
5. Check up a condition of racks and rubber pillows of the anti-roll bar, rocking a bar of the stabilizer up and down.
6. Check up a condition of a protective casing of a shock-absorber rack.
7. Raise the protective cover and check the shock absorber for tightness. Fluid leaks are not allowed.
8. Replace defective or damaged parts.
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