The Honda Civic, a stalwart in the compact car segment, has earned a reputation for reliability, efficiency, and performance. One of the less glamorous yet crucial components of this vehicle is its braking system, particularly the rear drum brakes found in some of its models. While many modern vehicles have transitioned to disc brakes for all four wheels, Honda has retained drum brakes on the rear in certain Civic models, especially those with lower trims and less powerful engines.
Disk brakes provide enhanced stopping power compared to drum brakes. The design of disk brakes allows for a more direct application of the braking force, resulting in quicker and more efficient stopping. The caliper that grips the brake rotor applies force evenly across the surface, providing a more responsive feel to the driver. Drum brakes, however, rely on brake shoes pressing against the drum's inner surface, which can lead to uneven wear and reduced stopping performance over time.
Севум, се, агар гармӣ давом кунад, он метавонад боиси канда кофтан ё шикастани компоненти механикӣ гардад. Ғайр аз ин, агар овардани дохилшудаи тормоз ба доираи маҳлули гармӣ ворид шавад, ин мегузорад, ки лутфан боқии дастгоҳҳо шахсан фаъол шаванд ва шикастам шаванд. Он метавонад боис гардад, ки мошин дар ҳолатҳои тохтусии ногаҳонӣ қарор гирад.
Drum brakes operate by utilizing friction generated between brake shoes and the inner surface of a drum. When the brake pedal is pressed, hydraulic force pushes the brake shoes outward against the drum, slowing down the vehicle. However, as the brake shoes wear down or as the brake system experiences thermal expansion, the gap between the shoes and the drum may increase, leading to reduced braking efficiency. Thus, periodic adjustments are necessary.
Po zdjęciu bębna z pojazdu, należy zmierzyć jego średnicę. Użyj suwmiarki, aby uzyskać dokładny wymiar. Pomiary powinny być wykonane w kilku punktach wokół bębna, ponieważ różnice w średnicy mogą wystąpić w wyniku zużycia. Upewnij się, że dokonujesz pomiarów na powierzchni roboczej bębna, gdzie styka się on z klockami hamulcowymi.
One of the most significant factors affecting the lifespan of drum brakes is the driver's behavior on the road. Aggressive driving, characterized by hard stops and quick acceleration, places added stress on brake components. Frequent heavy braking, such as that experienced in stop-and-go traffic, can also lead to quicker wear. In contrast, smoother driving habits can help extend the life of drum brakes.
Allerdings bringen nichtservo Trommelbremsen auch einige Nachteile mit sich. Die Bremskraft ist im Vergleich zu Servobremsen und Scheibenbremsen oft geringer, was bedeutet, dass der Fahrer mehr Kraft aufwenden muss, um das gleiche Bremsniveau zu erreichen. Zudem neigen sie dazu, bei intensiver Beanspruchung, zum Beispiel beim Fahren bergab oder bei häufigem Bremsen, schneller zu überhitzen, was die Bremsleistung beeinträchtigen kann.
Before delving into the rebuilding process, it helps to understand what a brake drum does. A brake drum is a cylindrical component that houses the braking mechanism. When you press the brake pedal, brake shoes expand against the inner surface of the drum, creating friction that slows down the vehicle. If the drum is worn, cracked, or out of round, it can lead to poor braking performance.
Secondly, the maximum allowable dimension is directly related to heat dissipation. Brake drums generate significant heat during the braking process, especially in heavy vehicles or those subjected to frequent stops. If the diameter exceeds the recommended size, the drum may not be capable of dissipating heat effectively. This overheating can lead to brake fade, a condition where the brakes lose efficiency due to excessive heat, further compromising safety.