CDL Air Brakes Endorsement 100% VERIFIED SOLUTIONS
CDL Air Brakes Endorsement 100% VERIFIED SOLUTIONS To check the slack adjusters on S cam brakes, you should: - ANSWERWear gloves and pull hard on each slack adjuster. To test the low pressure warning signal, you should (3): - ANSWER* Shut the engine off * Turn the electrical power on * Step on and off the brake pedal to reduce air pressure. With dual air systems, the air pressure should build: - ANSWERFrom 85 to 100 psi in 45 seconds. With single air systems, the air pressure should build: - ANSWERFrom 50 to 90 psi in 3 minutes. To test air leakage rate you should: - ANSWERTurn off the engine and release the service brake. To check the air compressor governor "cut in" and "cut out" pressures (3): - ANSWER* Run the engine at a fast idle * Pump the brake to reduce tank pressure * Monitor the air pressure gauge The governor allows the air to start pumping again when it reaches the cut in level or around: - ANSWER100 psi The governor stops pumping air when it reaches the "cut out" level, or around: - ANSWER125 psi You should use the parking brake: - ANSWERAny time you park
Document information
- Uploaded on
- June 23, 2023
- Number of pages
- 3
- Written in
- 2022/2023
- Type
- Exam (elaborations)
- Contains
- Questions & answers
