Hyundai Repair Questions? Ask a Mechanic for Answers ASAP
Hello I will help you with your question,
The adjustment is shown at the bottom of the shoes in this diagram >click<
Let me know if you can find it there
You should be able to see it though your rubber plug hole with a flashlight and reach it with a screwdriver.
If the rotor is fastened to then hub and not moving when you pull it (you have the brake caliper support off?) then it is not the park brake shoes holding it on but rust. First you remove the holding Phillips (crosshead) screw then spray a little penetrating oil around the hub center and the lug studs and smack the rotor hat three times with a heavy hammer. If the rotor still won't pop free install a pair of 8x1.25mm bolts in the threaded holes provided in the rotor hat and tighten them to push the rotor off the hub.
Let me know how I can help, 10am GMT is fine on my end.