Brake system

Part Checkpoint

Upper coupler

Surface

Fasteners Tasks

• Check if it is properly lubricated. • Check for cracks and deformation of pick-up plate. • Check if they are in place and tightened properly. • Check for loose, missing, or damaged parts, and replace them.

Kingpin

Surface Check if it is properly lubricated. Bottom locking flange Check for its proper condition.

™ NOTE If the fasteners of the upper coupler, side bottom rail, or rear frame wing plate are replaced with new ones, check if the replacement fasteners are the same diameter, design, and strength rating as the original equipment.

To ensure safe operation, inspect the brake system before every departure.

CAUTION

Do not operate the vehicle if the brake system is defective or not properly adjusted. Have your vehicle repaired by a qualified technician.

NOTICE

Inspect and adjust the brake system in accordance with the DOT requirements and a preventive maintenance program.