Junior has it! The adjusting pawl is outboard of the star wheel, and pushes down to tighten the brake adjustment. You must make the outboard side of the star wheel go UP to loosen, so the inboard side must go DOWN to loosen. You will lift the handle of your adjusting tool. Two adjusters are RH thread, two are LH thread!
Don't forget that you must push the adjusting pawl away from the star wheel to allow it to turn.
I recently had to use BLK69JUDGE's trick to disassemble a set of motorhome brakes. Wasn't easy, but it worked! If you had a leaky wheel cylinder, and the drum is rusted in place and will NOT rotate, this may be your only option. A new hardware kit is cheap, and money well spent.
Also, look closely at the front drums. Factory drums were locked to the hub by staking the wheel studs where they pass through the drum. You must pull bearings, and remove drum and hub as an assembly. If you're lucky, the drums have been replaced sometime in the last 50 years (!), and were replaced with a drum that is a slip-fit onto the hub.
Last edited by Montreux; 01-18-2019 at 01:36 AM.
Reason: Found the picture!