Identify the order of the steps involved in checking the lateral runout of a brake disc.

Step 1: Attach the dial indicator to the brake caliper bracket. Adjust the fixture arm until the indicator tip is against the brake disc's outer machined surface.

Step 2: Push the dial indicator towards the brake disc's machined surface until the dial indicator's needle makes one full revolution. Tighten the thumbscrew.

Step 3: Rotate the brake disc and watch the dial indicator's needle movement. Stop when the needle reaches its minimum travel point. Zero the dial indicator.

Step 4: Rotate the brake disc and read the measurement displayed on the dial indicator. This value is the amount of lateral runout for this brake disc.

To check the lateral runout of a brake disc, attach the dial indicator to the caliper bracket, push it against the disc, rotate the disc while watching the needle movement, and finally read the measurement on the dial indicator. These steps ensure accurate measurement critical to vehicle safety. Properly following these steps helps maintain optimal braking performance.

Explanation:

Steps to Check Lateral Runout of a Brake Disc

Attach the dial indicator to the brake caliper bracket. Adjust the fixture arm until the indicator tip is against the brake disc's outer machined surface.
Push the dial indicator towards the brake disc's machined surface until the dial indicator's needle makes one full revolution. Tighten the thumbscrew.
Rotate the brake disc and watch the dial indicator's needle movement. Stop when the needle reaches its minimum travel point, Zero the dial indicator.
Rotate the brake disc and read the measurement displayed on the dial indicator. This value is the amount of lateral runout for this brake disc.

By following these steps, you can accurately measure the lateral runout of a brake disc, which is important for ensuring optimal braking performance and safety.

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