OEM 2003 Cadillac DeVille Brake Disc

2003 Cadillac DeVille Brake Disc Parts and Q&A

• Q: How to Effectively Service and Repair a Brake Disc Using an On-Vehicle Lathe on 2003 Cadillac DeVille?

  A: To service and repair the Brake Disc, start checking the Brake Disc thickness variation because if the Brake Disc exceeds the maximum acceptable value it can result in brake pulsation. Make sure the caliper and caliper bracket are unobstructed from rotating components including the Brake Disc. While keeping the lug nuts installed for measurement taken during the runout test, also remove the conical Brake Disc washers (J45101-100). Check the mounting surface of the hub/axle flange and the Brake Disc for foreign particles or debris. Following the manufacturer's instructions, arrange the lathe and refinish the Brake Disc, checking the thickness after each cut. If the Brake Disc after refinishing becomes more than the minimum allowable thickness, it should be replaced. Once refinished, add a non-directional finish with the advised speed setting; if the lathe contains a non-directional finishing tool, use the 120 grit aluminum oxide sandpaper or if it does not have such a tool, use a sanding block with 150 grit aluminum oxide sandpaper. Clean up each friction surface of the Brake Disc using denatured alcohol or an approved brake cleaner. While taking out the lathe from the vehicle, you are to determine the assembled lro of the Brake Disc. If the measurement is more than the maximum allowable specification then corrective action is necessary. If within specification, install brake caliper and depress brake pedal one or two times; securely hold disc to brakes before taking off the conical Brake Disc washers (J45101-100) and lug nuts.