Special Tools

CH 230 Disc Gauge

For equivalent regional tools, refer to Special Tools.

Warning: Refer to Brake Dust Warning in the Preface section.




1. Measure the brake shoe lining thickness, using the CH 230 gauge .
2. Compare the brake shoe lining thickness recorded to the brake drum component specification. Refer to Drum Brake Component Specifications.

Note: Replace the shoe and lining assembly in axle sets only.

3. If the brake shoe lining thickness is less than the specification, or if a defect is found, replace the linings. Refer to Brake Shoe Replacement.