Unhitching

I sometimes experience this. I don't know why but I am interestested to find out thy and the solution from others with greater knowledge.

After reversing onto a pitch put on hand break on caravan without unhitching pull forward a couple of inches you should be able to lift hitch of the tow ball good luck.

You may also not be lifting the handle up far enough to to release the tow ball. I know we have done this in the past. We lift the handle and keep it lifted while turning the jacket wheel handle.

After reversing onto a pitch put on hand break on caravan without unhitching pull forward a couple of inches you should be able to lift hitch of the tow ball good luck.

My thoughts as well. I have had it occasionally and I use the motor mover to move the caravan slightly as I will be using it to pitch

I agree with Kerry Watkins.  Likelihood is your not lifting the hitch handle enough when raising the caravan with the jockey wheel

I occasionally get this if the van is on a downwards slope, as even with the brake on there is some initial movement, resulting in the hitch being held on the tow bar. In these cases I let the car move back fractionally towards the van. No engine, just on the brake. Otherwise, I suspect it is as other are suggesting, you are not lifting the leaver enough. If possible you could get someone else to lift the leaver, while you wind the jockey.

Same as above except to say I have seemed to have had more problem when the hitch is stretched rather than compressed.  It's a question of looking at the hitch either going back or forward an inch or so which ever way takes the tension of the ball.  I would also wind the jockey wheel down a bit as it can come off with quite a pop if the back of the car has been lifted.  

If you have self levelling suspension , like me, make sure you switch off the engine or the car keeps lifting as the weight comes off.

I have too much nose weight to be able to lift off manually so I have to use the jockey wheel.  This is hard trying to hold the handle up with one hand and wind down the jockey wheel with the other. I have made a wedge to keep the handle fully up whilst using both hands to wind.

My betterhalf went on a cc towing course and he was told after hed reversed onto pitch to edge forward a couple of inches (do you think that might help)?

Jo if your hitch has new pads it can be difficult too and will ease - that is after you have tried the ease forward and other advice already given.