This Video will show how to adjust just about any closer.
Taken from a 22 minute with way more inro than an installer needs.
so I shortened this one to just thefacts and the closer body and adjustments.
From Terry, Carpenters Local Union Local #156 Oregon City,Oregon
This video shows you how to replace / change electric drum brake on a Sundowner horse trailer with two 5.2K lb. Dexter axles with 3000 lb. brake rating. The hub and drum brake combination will be replaced with new wheel bearing cones and cups along with grease seal. The brake shoes, not brake pads and magnets can be replace only, buy it’s much easier and cost the same just to change out whole assembly. Go ahead and repack the wheel bearings while you have the trailer brakes off. A viewer pointed out that I did not instruct to reconnect the wires. I used wire nuts and sealed them with hot glue.