What kind of system is it? Figure that out, then you can do a more knowledgeable search on You Tube. If it's been 10 or 20 years since the system has been inspected or serviced... don't wait. I'm a proponent of replacing parts such a cables and bushings... because they wear out, especially if they are not maintained properly. So figure out what you have.... outboards us the teleflex style cables.... really easy to change. Wheel systems vary in how they work... cables and quadrants, gears and cables... I really don't know that well, except the teleflex which I've changed... making all the difference in the world.
By the way, if you post one or two pictures of you system's under deck gear, and perhaps pop the top on your pedestal to see the brake is the culprit. Okay.. good luck.