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BASIC BRAKE SYSTEM – On-vehicle Service 35A-12 DISC BRAKE ROTOR CHECK Caution Before re-finishing or re-processing the brake disc surface, the following conditions should be checked. Inspection items Remarks Scratches, rust, saturated lining materials D If the vehicle is not driven for a certain period, the sections of D If grooves resulting from excessive disc wear and scratches are Run-out or drift Excessive run-out or drift of the discs will increase the pedal depression Change in thickness (parallelism) If the thickness of the disc changes, this will cause pedal pulsation, Inset or warping (flatness) Overheating and improper handling while servicing will cause inset or BRAKE DISC THICKNESS CHECK 1. Using a micrometer, measure disc thickness at eight _ apart and 10 mm in from the outer edge of the disc. Brake disc thickness Item Standard value Limit Front 22.0 20.4 Rear 9.4 7.8 Thickness variation (at least 8 positions) The difference between any thickness measurements 2. If the disc is beyond the limits for thickness, remove it |