Chevrolet Equinox Service Manual: Brake Rotor Assembled Lateral Runout Correction - Correction Plates Disc Brakes Brake Rotors

Note:This procedure not used in Europe

Special Tools

CH-45101-100 Conical Brake Rotor Washers

For equivalent regional tools, refer toSpecial Tools.

Warning:Refer toBrake Dust Warning.

Note:

Brake rotor thickness variation MUST be checked BEFORE checking for assembled lateralrunout (LRO). Thickness variation exceeding the maximum acceptable level can causebrake pulsation. Refer toBrake Rotor Thickness Variation Measurement.Brake rotor assembled LRO exceeding the maximum allowable specification can causethickness variation to develop in the brake rotor over time, usually between 4,800–11,300-km(3,000–7,000-mi). Refer toBrake Rotor Assembled Lateral Runout Measurement.Rotate the brake rotor to position the high spot, identified and marked during thebrake rotor assembled LRO measurement procedure, to face upward.Remove the CH-45101-100 Conical Brake Rotor Washersand the lug nuts that were installed during the assembled LRO measurement procedureand/or the indexing correction procedure.Inspect the mounting surface of the hub/axle flange and the brake rotor to ensurethat there are no foreign particles or debris remaining.Select the correction plate, following the manufacturer's instructions, which hasa specification closest to the assembled LRO measurement.

For example: If the assembled LRO measurement was 0.076-mm (0.003-in), the 0.076-mm(0.003-in) correction plate would be used. If the measurement was 0.127-mm (0.005-in),the 0.152-mm (0.006-in) correction plate would be used.

Determine the positioning for the correction plate-(1) using the high spot mark-(3)made during the brake rotor assembled LRO measurement procedure.

Note:

Do NOT install used correction plates in an attempt to correct brake rotor assembledLRO.Do NOT stack up, or install more than one correction plate onto one hub/axle flangelocation, in an attempt to correct brake rotor assembled LRO.Install the correction plate-(1) onto the hub/axle flange, with the V-shaped notch-(2)orientated to align with the high spot mark-(3), that was positioned to face upward.

Install the brake rotor to the hub/axle flange. Use the matchmark made prior to removalfor proper orientation to the flange.Hold the rotor firmly in place against the hub/axle flange and install one of theCH-45101-100 Conical Brake Rotor Washers-(1) and one lug nut-(2) onto the upper-most wheel stud.Continue to hold the rotor secure and tighten the lug nut firmly by hand.

Install the remaining CH-45101-100 Conical Brake Rotor Washersand lug nuts onto the wheel studs and tighten the nuts firmly by hand in a star-pattern.Tighten the lug nuts in a star-pattern to specification, in order to properly securethe rotor. Refer toTire and Wheel Removal and Installation.Measure the assembled LRO of the brake rotor. Refer toBrake Rotor Assembled Lateral Runout Measurement.If the brake rotor assembled LRO measurement still exceeds the maximum allowable specification,refer toBrake Rotor Assembled Lateral Runout Correction.If the brake rotor assembled LRO measurement is within specification, install thebrake caliper and depress the brake pedal several times to secure the rotor in placebefore removing the CH-45101-100 Conical Brake Rotor Washersand the lug nuts.