Make sure the parking brake shoe is centered evenly on the backing plate as best as possible. Using a caliper, measure the widest point on the parking brake shoe while adjusting the actuator screw accordingly to a reading of 175mm on the caliper tool. 175mm will get you in the ballpark for final fine tuning adjustments.
Place the rotor on the hub and fully screw on all five lug nuts by hand. This is necessary to keep the rotor parallel and from flopping around which affects parking brake adjustment. Now spin the rotor by hand while listening for any rubbing and also feeling for drag, then determine where the rubbing is happening. This can also be done by removing the rotor and inspecting the shoe pad material for signs of contact which should be very easy to see.
Gently bump the parking brake shoe by hand in the direction away from where it is touching the rotor and repeat the test until there is little to no rotor rubbing or drag. A small amount of rubbing is fine, but too much drag will prematurely wear out the parking brake shoes and affect parking brake operation.
With the rotors back on the hub as above, pull the parking brake lever up all the way and try to turn the rotors by hand in both directions to check the degree to which the parking brake shoes are holding. Sometimes they won't move at all or maybe just a little or only in one direction. You must apply enough turning force as if the wheel is mounted on the rotor, but hand force is fine so no need to break out the pry bars.
If the rotor still moves, release the parking brake and remove the rotor. Adjust the actuator screw out a few clicks and repeat the test. Do not move the actuator screw more than 2-3 clicks at a time otherwise you could create unnecessary drag and it doesn't take much. The brakes are properly adjusted once you can not turn the rotors in either direction with the parking brake on and there is minimal to no rotor drag with the parking brake off.
Note: I have found that the parking brake lever needs to be pulled all the way up otherwise the parking brake may not fully hold the vehicle from moving.
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