How to Lock Trailer Brakes Before Coupling?

How do you lock the trailer brakes before coupling? To lock the trailer brakes before coupling, connect the trailer's emergency airline and engage the brake lever on the trailer. After backing the tractor under the trailer, disengage the brakes and connect the service airline. This allows control of the brakes from the tractor's cab.

Locking Trailer Brakes Before Coupling Process

Locking the trailer brakes before backing under it in a process known as coupling requires following a specific procedure to ensure safety and efficiency.

Steps to Lock Trailer Brakes Before Coupling

1. Connect Emergency Airline: Start by connecting the trailer's emergency airline. This ensures that the trailer's air brake system is filled and functional, ready for operation.

2. Engage Brake Lever: Make sure to engage the brake lever on the trailer. This action will lock the trailer brakes and prevent any movement during the coupling process.

3. Back Tractor Under Trailer: Once the trailer brakes are locked, back the tractor under the trailer carefully to complete the coupling process.

4. Disengage Brakes and Connect Service Airline: After positioning the tractor under the trailer, disengage the brakes and connect the service airline to control the brakes from the tractor's cab.

Importance of Locking Trailer Brakes Before Coupling

Locking the trailer brakes before coupling is crucial for safety and stability. By following the correct procedure, you prevent accidental movements of the trailer and ensure a secure platform for the coupling process.

It is essential to adhere to these steps to guarantee a safe and effective coupling experience. Remember to prioritize safety measures when operating vehicles.

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