Answer :
Final answer:
On older vehicles, the normal position of the lever for the tractor protection valve is pushed down or towards the front of the vehicle, while the emergency position is pulled up or towards the back of the vehicle.
Explanation:
On older vehicles, the lever for the tractor protection valve may have two positions: normal and emergency.
In the normal position, the lever is usually pushed down or towards the front of the vehicle. This allows for regular operation of the valve, providing the necessary protection for the tractor.
In the emergency position, the lever is usually pulled up or towards the back of the vehicle. This activates the emergency brake system, stopping the tractor in case of a critical failure or emergency situation.
Final answer:
On older vehicles, the lever for the tractor protection valve has two positions: normal and emergency. In the normal position, air flows freely through the system. In the emergency position, the valve is closed, activating the emergency braking system.
Explanation:
In older vehicles, the lever for the tractor protection valve may have two positions: normal and emergency. In the normal position, the valve allows air to flow freely through the system, ensuring proper operation of the braking and air supply systems.
In the emergency position, the valve is closed, cutting off the air supply to the brakes and activating the emergency braking system, which can help in situations where immediate stopping is required.
