| 1. Raise the car. |
| 2. Light with a lamp rubber of cuffs and check it for lack of porosity and cracks. Immediately replace the cracked cuffs. |
| 3. If the cuff because of depression in the hinge is extended inside or damaged, then it should be replaced at once. |
| 4. Pay attention to visible traces of oil on cuffs and around them. |
| 5. Check hard landing of tightening collars. |