| 1. Mark a paint position of wheels concerning a nave. With this balance the wheel after removal can be put into place so as not to break balance. Release the wheel bolts are not picking up the car, then lift the car and remove a wheel. |
 | 2. Measure the thickness of the brake discs. In the workshops for this purpose a special micrometer or caliper (035), as when worn on the edge of the disc is formed collar. One can measure the thickness of the disc and a conventional caliper, but in this case on each side of the brake disc to be used for fixed installation (e.g., 2 coins). To find out the thickness of the disc, from the testimony should subtract the thickness of the pads. |
A warning  When more accurate measurements with a micrometer is necessary to measure a minimum of eight points in the disc. The thickness must remain constant within a tolerance of 0.02 mm.
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| 3. On reaching the minimum thickness can again change the brake pads. If the wear limit is reached, replace brake discs. |
| 4. Refrigerated brake discs with thin cracks up to 25 mm in length, which may occur due to high load, there is no need to replace. For large cracks or bumps deeper 0.5mm disc is replaced. |
| 5. Repair of brake disks is not permitted. Replace both disks should be on the axis. |
 | 6. If there is a clock at the disposal of the indicator, measure the lateral runout of the brake disc in the assembled state. All indicator of small displacements put at the center of the braking surface. |
A warning Excessive lateral runout may be due to increased clearance in the wheel bearing, so, first of all, adjust the gap. If it is to no avail - replace the brake disk.
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| 7. Place the wheel so that coincided markings installed before their removal. Screw the wheel. Remove the car with supports and tighten the wheel bolts crosswise with a torque of 110 Nm |
