Brake Shoe Adjustment: Buick
Remove adjusting hole cover. Install a tool through hole to move self-adjuster lever off of adjusting screw. Use adjusting tool to turn adjusting screw and expand brakes. Expand brakes until wheel can just be turned by hand. Make sure drag is equal on both wheels. Back off adjusting screw 30 notches. If shoes still drag, back screw off one or two more notches. Brakes should not drag after 12 notches. If heavy drag is felt, check for a tight parking brake cable.