Its very basic, use common sense. try to have your ramp, on the hitch, approx. 1/2" above flat on trailer. firmly engage hitch. everything should click/snap into place. when unhitching, relieve load on kingpin. back truck up 1/2" then put in park, set brake and release. try to be level as possible. as long as it appears the king pin will set in hitch jaws, it is good to go. practice @ home until you can easily do it urself.