Assign an assistant to stand behind the towing truck and near the fifth wheel, and have the assistant help you back up to the camper's arm with the tow hitch.
Push the female hitch end, found on the camper, into the receiver on the towing vehicle. Slide the two interlocking rectangular metal tubes into each other and align the safety cotter-lock pin holes. Slide the locking cotter pin into the tow hitch holes and lock them with the cotter pin wires.
Connect all light plugs from the vehicle to the camper's receiving end plugs. Have the assistant stand behind the camper as you test the brake lights, signal lights and all other illuminations on the trailer to ensure the connections are solid and secure.
Set the camper's breakaway switch -- this is a one-way brake that engages should the camper come off the tow hitch. Look for the breakaway switch at the arm of the camper.
Climb into the driver's seat and adjust your side-view mirrors to give you a full view of the side of the camper.
Practice driving with the camper in tow. Learn the subtle braking needed with the extra weight. Anticipate your distance needed for braking to prevent accidents. Go to a parking lot and set up the road cones to practice S-turns, backing up and parking with the camper in tow.