Back or pull the trailer to the desired location. Use a level, preferably one at least 3 feet long, to make sure the trailer is sitting level from side to side (wheel to wheel). If the trailer is not level, it can be leveled by backing or pulling it onto one or more pieces of plywood placed under the wheel or wheels on one side of the trailer.
When the trailer is in the desired location and level from side to side, place wheel chocks in front of and behind the camper's wheels.
Disconnect the trailer's electrical wiring plug from the tow vehicle, as well as any safety chains or break-away cable.
Pull up on the latch on top of the hitch ball. Make sure the latch disengages.
If the jack at the tongue of the trailer has no wheel, place a block of wood under the jack. Crank the jack of the trailer up, so there's enough room for the hitch ball to clear the trailer's tongue when the vehicle is pulled away. Pull the vehicle out of the way.
Crank the trailer back down, and use the level to make sure the trailer is level from front to back.
Extend the stabilizer supports at the corners of the camper, or place stabilizer jacks under the frame of the camper at the corners.
Connect the desired utilities, if they're available on your camper and at your campsite.
