SRX RWD V8-4.6L VIN A (2006)
14. Mount a dial indicator, J 45101 , or equivalent, to the steering knuckle and position the indicator button so it contacts the brake rotor friction
surface at a 90 degree angle, approximately 13 mm (0.5 inch) from the outer edge of the rotor.
15. Measure and record the assembled LRO of the brake rotor.
0. Rotate the rotor until the lowest reading is displayed on the indicator dial, then set the dial to zero.
1. Rotate the rotor until the highest reading is displayed on the dial.
2. Mark the location of the high spot relative to the nearest wheel stud, or studs.
3. Measure and record the amount of LRO.
16. Compare the brake rotor assembled LRO to the following specification:
^
Front brake rotor maximum allowable assembled lateral runout: 0.05 mm (0.002 inch)
^
Rear brake rotor maximum allowable assembled lateral runout: 0.05 mm (0.002 inch)
17. If the brake rotor assembled LRO measurement exceeds the specification, bring the LRO to within specifications. Refer to Brake Rotor Assembled
Lateral Runout (LRO) Correction.
18. If the brake rotor assembled LRO measurement is within specification, install the brake caliper and depress the brake pedal several times to secure
the rotor in place before removing the J 45101-100 and the lug nuts.
Brake Rotor Surface and Wear Inspection
Brake Rotor Surface and Wear Inspection
Caution: Refer to Brake Dust Caution in Service Precautions.
1. If the inboard friction surface of the brake rotor is not accessible, reposition and support the caliper with the brake pads. Refer to Brake Pads
Replacement - Front and/or Brake Pads Replacement - Rear.
2. Clean the friction surfaces of the brake rotor with denatured alcohol, or an equivalent approved brake cleaner.
3. Inspect the friction surfaces of the brake rotor for the following Braking Surface Conditions:
^
Heavy rust and/or pitting Light surface rust can be removed with an abrasive disc. Heavy surface rust and/or pitting must be removed by
refinishing the rotor.
^
Cracks and/or heat spots
^
Excessive blueing discoloration
4. If the friction surfaces of the brake rotor exhibit one or more of the Braking Surface Conditions, the rotor requires refinishing or replacement.
5. Using a micrometer calibrated in thousandths-of-a-millimeter, or ten-thousandths-of-an-inch, measure and record the scoring depth of any grooves
present on the rotor friction surfaces.
6. Compare the groove scoring depth recorded to the following specification:
Brake rotor maximum allowable scoring: 1.50 mm (0.059 inch)
7. If the brake rotor scoring depth exceeds the specification, or if an excessive amount of scoring is present, the rotor requires refinishing or
replacement.
Brake Rotor Thickness Measurement
