What is the required storage position for the brake tube?

The required storage position for the brake tube is closed. Storing the brake tube in a closed position is essential for ensuring that the interior components remain clean and protected from external contaminants, which could potentially impair the functionality of the braking system. A closed position also prevents any accidental loss of brake fluid or damage to the tube itself, thereby maintaining the integrity and safety of the equipment.

In contrast, an open position could expose the tube to dirt, moisture, and other harmful elements that may lead to corrosion or malfunction. Similarly, a vertical or horizontal position does not inherently address the protection against contaminants or the maintenance of fluid levels, which is why these options are not suitable for proper storage. The closed position is the best practice for safeguarding the braking system's components for optimal performance and safety during operations.