Adjusting rear drums? Need a how to

My brakes are very weak. In one of the threads I've read someone was having similar problems and it was thought the rear drums needed to be adjusted. How is this done. I found a thread once before but can't find it now.
Thanks
Dan
Thanks
Dan
Comments
Thanks again
dan
wagon...........................4ever.................
The hardest part is seeing in that tiny little hole. It's easiest if your car is on a lift.