Autozone repair guides.
Drum doesn't have a hub on it so it should be able to be tapped off once the brakes are loosened.
http://contentinfo.autozone.com/znetcs/product-info/en/US/aim/80113/image/8/Removal & Installation
Before servicing the vehicle, refer to the Precautions section.
Remove or disconnect the following:
Rear wheels Rubber plug from the top of the brake support plate (backing plate)
Insert a small prying tool through the adjuster access hole and engage the teeth on the adjuster wheel.
Rotate the adjuster wheel so it is moved toward the front of the vehicle. This will back off the adjustment of the rear brake shoes. Continue moving the adjuster wheel toward the front of the vehicle until it stops moving.