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Return springs are essential for retracting the brake shoes after the brake pedal is released. They pull the shoes back into position, preventing them from dragging against the drum, which would lead to excessive wear and reduced fuel efficiency. Proper tension in the return springs is critical for the quick and effective operation of the brake system.
list the parts of a drum brake assembly

A drum brake self-adjuster repair kit typically includes all the necessary components to restore the functionality of the self-adjuster mechanism. The kit generally consists of an adjusting screw, spring, lever, and sometimes additional hardware such as clips and cotter pins. These parts work together to maintain the correct position of the brake shoes, ensuring even pressure across the drum and preventing excessive wear.