take off the rear drums one at once,clean out rust and de burr drum if needed.oil the bearing shaft with wd40 so it slips on and off easily.with the drum off you can see the ajusters flick the cam on two or three notches,then try drum if still free do this agian and just as you feel it touching slip drum back on.now do other side the same,if you take up to much you will gently have to release the clip underneath to go back a notch or two.if your hand brake feels ok put back the washer nut retighten and try up road
bob
June 2012