Usually, to get the weight bars off the brackets, you need to leave the hitch attached to the ball and using the tongue jack, lift the rear of the tow vehicle along with the tongue of the trailer until you can simply slide them off without any drama.
If you are using a pry bar to release them, you haven't removed the weight. Be extremely careful when using any type of pry bar to remove the equalizer bars. They can spring out at great speed and break your legs if standing in the wrong place.
Use the tongue jack to lift the rear of the tow vehicle when installing the qualizer bars also.
Depending on how much they lowered the receiver, it could or could not screw up the proper settings.
You need to measure the distance from the edge of the front fender wheel well to the ground without the trailer attached. Then attach the trailer and measure again. The new measurement should be about 1/2" -1" lower than without the trailer. If it is more than 1" lower, there is too much weight on the equalizer bars. If the distance to the ground is greater than without the trailer, the EQ hitch is not doping its job.
All these measurements need to be taken on level ground and with a fully loaded trailer...Water, food, cloths etc.
Hope this helps!
RoyB
Dartmouth, MA
2021 RAM 2500 4X4 6.4L
2011 Forest River Grey Wolf Cherokee 19RR
520 w solar-200ah Renogy Li-Epever MPPT