After replacing any of the parking brake cables, you must:

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When you replace parking brake cables, the system needs to be re-tensioned so the lever (or pedal) movement translates to the correct brake engagement. The new cable is a different length and tension than the worn one, so the caliper or drum shoes must be adjusted to sit at the proper clearance. If you don’t adjust, the brake may not hold the vehicle securely or could drag even when released. Bleeding the brakes isn’t necessary because the hydraulic system isn’t opened, and lubricating the cables isn’t required as part of the standard procedure—though some designs may have lubrication points. Replacing drums isn’t needed unless the drums are worn or damaged.