I need to dive into my breaks and I want to check everything over. Last year I started hearing some banging when I would start and stop on the way to the lake. I cant find anything wrong but I did read that actuaters go bad and fluid should be checked. Im pretty good with most things, but I have no idea about trailer brakes. I have no faith in local guys so Im hopingthere might be a link where it explains what needs to be checked and changed? Anyone care to give some quick tips on how to check the system for low fluid? Thanks, G