What brake system warning symbols should an operator be aware of on Caterpillar equipment?

The Brake System section includes symbols for Brake System Failure/Malfunction, Anti-Lock Brake System Failure/Malfunction, Worn Brake Linings, and separate failure symbols for First Trailer and Second Trailer brake systems. The Park Brake and Secondary Brake also have their own dedicated warning symbols. (Pages 12-14)

From the official Cat Warning Symbols And Meanings Guide manual, page 12

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