CVSA INTERNATIONAL ROADCHECK 2024: TRACTOR PROTECTION AND ANTI-BLEED BACK SYSTEMS

CVSA International Roadcheck 2024's vehicle focus is Tractor Protection Systems. A commercial motor vehicle's tractor protection system consists of a tractor protection valve, trailer supply valve and anti-bleed back valve. All valves should be properly tested during a driver's trip inspection and an inspector's roadside inspection.

During the inspection of tractor protection system components, the inspector will:

• Ensure the wheel chocks are still in place and have the driver release all the brakes by pressing dash valves.
• Have the driver carefully remove the gladhands and allow air to escape.
• Ensure the air stops leaking from the supply line with at least 20 psi remaining.
• Listen and/or feel for any leaking air at the gladhand couplers on the trailer.
• Request a full service brake application by the driver.
• Listen and/or feel for leaks from both air lines.

Get ready for your full vehicle inspection with our CVSA International Roadcheck Prep Checklist.