How to Adjust Brake Rear Drum

[yebo]

Reversing ang applying the brakes will automatically adjust the drum brakes IF your brakes are of the self adjusting type.

If your drum brakes are not self adjusting then all you need is a screw driver. There is a slot behind the brake where you can insert a flat tip screw driver and then turn the adjusting nut of the brake piston adjuster. This is a adjust-test-adjust method so you will need to do it several times until you are satisfied with how the brake grips.

[dr. d]

some models are self-adjusting; you just have to back up and step on the brakes.
other models are manual-adjusting.

if the auto-adjusting brake innards get too dirty, they may not be able to self-adjust anymore. and also when the friction pads get to be too thin..