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Question:
Step 8: Supply Air to Trailer - Check the brake system for crossed air lines: Apply and release the trailer brakes and listen for the sound of trailer brakes being applied and released. You should hear the brakes move when applied and air escape when the brakes are released. [California Commercial Driver Handbook]
Comments
Brian Fisher
2 years ago
Very thorough
Gary Davis
2 years ago
Excellent helpful feedback after each answer!
Anthony Ward
2 years ago
Very helpful...for getting your CDL..