Regular maintenance and timely replacement of brake shoes are crucial to ensure the continued safety and effectiveness of a vehicle's braking system. Over time, the friction material on the brake shoes wears down, reducing their ability to generate friction. Signs that brake shoes may need replacement include unusual noises such as squealing or grinding, reduced braking performance, or vibrations during braking. It is important to inspect brake shoes regularly and replace them before they become too worn, as damaged or worn brake shoes can cause damage to the brake drum, leading to more expensive repairs and compromised safety.

Brake shoes are typically equipped with springs that return them to their resting position once the brake pedal is released. This spring mechanism ensures that the brake shoes do not drag on the brake drum when not in use, reducing wear and tear. Some brake shoes also have an automatic adjuster mechanism that ensures the correct distance between the shoe and the drum as the friction material wears down over time. This feature helps maintain consistent braking performance and prevents the brake shoes from becoming too close to the drum, which could lead to excessive heat generation and premature wear.