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Fig. 32: Mounting Dial Indicator To Measure Lateral Runout 10. 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, 11. Measure and record the assembled LRO of the brake rotor. 1. Rotate the rotor until the lowest reading is displayed on the indicator dial, then set the dial to zero. 2. Rotate the rotor until the highest reading is displayed on the dial. 3. Mark the location of the high spot relative to the nearest wheel stud or studs. 4. Measure and record the amount of LRO. 12. Compare the brake rotor assembled LRO to the following specification: Specification: Front brake rotor maximum allowable assembled lateral runout: 0.13 mm (0.005 in) Rear brake rotor maximum allowable assembled lateral runout: 0.13 mm (0.005 in) 13. If the brake rotor assembled LRO is within specifications, proceed to step 18. If the brake rotor assembled LRO exceeds the specification, refinish the rotor to ensure true 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, 15. Measure and record the assembled LRO of the brake rotor. 1. Rotate the rotor until the lowest reading is displayed on the indicator dial, then set the dial to zero. 2. Rotate the rotor until the highest reading is displayed on the dial. 3. Mark the location of the high spot relative to the nearest wheel stud or studs. 4. Measure and record the amount of LRO. 16. Compare the brake rotor assembled LRO to the following specification: Specification: Front brake rotor maximum allowable assembled lateral runout: 0.13 mm (0.005 in)
2007 Hummer H3 2007 BRAKES Disc Brakes - H3
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