greasing an s cam tube, slackadjuster and adjusting a brake set 

here is a short demonstration of what adjusting a brake looks like, aswell as greasing a slack adjuster and s-cam tube. now, this is just example work of what a mechanic may do when you bring it to a shop. make sure if you bring your equipment to someone for work, that you understand what work got done and that it was what you wanted done for the money you spend. call it a helpful tip on consumer advice.