Difficulty getting the tow ball to release from hitch

OT a little but I'm using a Blue Ox WDH. The ball sits vertical because the spring bar angle is cast into the head. Very few issues with releasing. I'm thinking that the vertical ball puts less pressure on that flapper thing in the coupler.
BTDT with an EQ and an EAZ-Lift.

Used to have issue fairly often with tilted head units. Usually just putting the truck in D and easing forward released everything.

At a camp ground I always store the ball on the trailer hitch with a lock when I leave I just release the hitch lock and the ball falls right out and then I put it on the truck

Yes you could leave the ball connected to the trailer if you release the weight distribution first. The hard part though might be trying to put the stinger back in the receiver tube of the tow vehicle when you're ready to go home.

Can you leave the ball attached to the trailer instead of unlocking it from the hitch?

Sounds about normal to me.

Do you use any greases on your hitch?

delete

About 60 years ago I discovered some magic stuff that greatly reduces the binding on metal to metal contacts of all kinds. That would be the first thing I would try.

If you don't bother checking the link that thomasmnile posted check these steps in order..

1 Chalk the trailer wheels (both sides and one chalk in front and one chalk behind).

2 Release and remove WD bars

3 Release hitch lock

4 Drop tongue jack and start lifting the tongue.

5 Depending on slope you may need to backup slightly or pull forward slightly to allow the hitch ball to center in the hitch.

6 once the ball is no longer touching the front or back of hitch you should now be able to continue raising the tongue and the ball will drop out of the hitch with ease.

7 Pull vehicle forward then lower hitch until level.

Following the steps above, I rarely ever have any issues getting the ball out of the hitch..

The trick is to relieve any binding that may be happening and the only way that is possible is to allow some slack between the ball and hitch.

If that fails, then try lifting the tongue ever so slightly, only enough to take the tongue weight off the vehicle..

Then pull out the hitch pin from the receiver, if you cannot pull the hitch pin out, you ARE binding the ball in the tongue (making darn sure the chalks are in place, WD disconnected and the hitch ball lock has been unlocked).

IF you cannot pull out the hitch pin you need to allow the vehicle to move slightly forward or reverse.

Once you have some slack then pull the vehicle forward enough to allow the hitch to pull out of the receiver.. I would bet the moment the hitch falls out of the receiver it WILL hit the ground all by its' self..

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Should be helpful for you.