A small amount of brake drag is normal for rear disc brakes, but heavy drag usually indicates an over-adjusted parking brake mechanism. How do you determine if the mis-adjustment is in the linkage or in the caliper self-adjusters?
Fill in the blank(s) with the appropriate word(s).
Disconnect the cables at a convenient point so that all tension is removed from the caliper levers. If brake drag is reduced, inspect the external linkage and lubricate, adjust, or repair it as necessary. If brake drag is still excessive with the parking brake linkage disconnected, check the caliper levers to be sure that they are returning fully against their stops. If the caliper levers are operating correctly and brake drag remains excessive, the calipers must be repaired or replaced.
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