Ductape wrote:
milo wrote:
raised 5er to just off the hitch and pulled forward
There's your problem. Should always have the truck/hitch higher than the pinbox when hooking and unhooking.
True. That likely is the problem. You should not be lifting the inbox that high. Should only lift high enough to relieve MUCH OF the "squat" from the trucks suspension. Just enough so that when you pull away from the hitch, and the trucks bed rebounds upward, it does not rise to bump into the under side of the trailers overhang.
And you should pull away SLOWLY. And let the inbox slowly and gently slide off the hitch plate ramp.
If you lift your hitch too high, the hub on the bottom of the kingpin can interfere with the bottom of the hitch plate. And it will distort or bend the plate. When that happens, the bottom of the plate will interfere (very close tolerance) with the rotation of the wrap around jaws. The result is the jaw will not wrap completely around the kingpin when hitching.
And to fix that issue, you need to remove the hitch plate and bend the hitch plate back into the correct position. Best done with a press. Because the amount you bend it is very little. And in a very small specific area of the hitch plate.
Unless of course if you find this oddity has happened at 8:30AM on a Sunday morning, when you are due to check out of the campground. Then a pretty big (at least 2 ft long handle) adjustable wrench can do the job. That is...if you can borrow one from the maintenance shack of the campground your are staying in. And then you can hold the hitch plate between a fork in a large tree.
But it is so much better to just not raise the elevators too high when unhitching.
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