Ensure that the parking brake is set on stand-alone RV vehicles, and chock the tires (brace the tires with something) on trailer RVs. Loosen the nuts holding the tire in place in the area where you will be working on the brakes using a ratchet and socket. Remove all the bolts and place a jack under the axle of the RV.
Raise the RV so that the tire is a few inches off of the ground and place a jack stand under the axle. Lower the RV onto the jack stand and remove the tire from the bolts. Work with one side of the vehicle only. Do not raise both sides of the RV up off the ground at the same time unless you are working with a professional car lift.
Set the drain pan under the rubber brake hoses and loosen the bleeder screw on the wheel cylinder or caliper (depending on the style of RV as well as type of brakes installed). Tighten it once you have ensured it is loose enough to work with later and find the rubber hose connectors and the corresponding bolts and screw clips holding them in place.
Detach the clips or brackets holding the hoses in place with a socket or screwdriver and remove the rubber hose from the caliper or disk. If you are dealing with drum brakes, remove the bolts holding the steel brake hose in place. Disconnect any wiring running to the brakes and set it to the side with the hoses.
Remove the brakes, regardless of whether they are disk or drum, after the lines have been disconnected. If it is your first time doing brakes, check the manufacturer's instructions with your new brake kit and reverse the written instructions to remove the actual brake. Then replace it with the new brake. Reattach the connectors, hoses and any wiring.
Start the RV or hook your RV trailer to your towing vehicle, including the corresponding trailer plug. Find someone to help you and have him sit in the RV or the tow vehicle and pump the vehicle brakes while the engine is running. Bleed the brake system into the drip pan by opening the bleeder valve while the brakes are being pumped until all of the air is out of the hoses and fluid comes out. Refill the brake fluid at the master cylinder.
Put the tire back on the RV and tighten the nuts in a star pattern, working your way around the tire until all of them are tight. Raise the jack high enough to remove the jack stand and then lower the RV back to the ground.
