So, the rear brake on my girlfriends bike was getting a bit stuck and wouldn't retract all the way at the drum. I took the bracket that connects to the drum off. The part is circled here, So I took it off, gave it a clean in some WD40 and put it back on. I didn't mark any positions of where the adjustor bolts went stupidly. Read my manual and it doesn't say anywhere to do it, probably because it's common sense. So after a bathe in the lube, everything went back on correctly. Usually when the brake pedal is depressed it tenses a cable which pulls that bracket forwards, applying the drum brake. The problem now is, when the bracket is moved FORWARD by the cable (pedal depressed) it does not engage the brakes. I tried using my hand to pull the bracket all the way forward, and it still would not engage. Oddly enough when I pull it BACKWARDS (the opposite way the cable is pulled when brake is depressed), the brake engages. What the hell did I do? I'll take some real pics in daylight for a better look. The brakes are still within the 'brake lining wear limit'. Cheers folks.