Pull Rite hitches have a capture plate and it goes on the pin box on the 5ver. The capture plate has a wedge which goes into the Pull-Rite hitch in the truck. When the truck turns the capture plate does not turn. Instead the capture plate turns the hitch in the TV which in turn slides the hitch up to 14" towards the back of the truck and vice versa.
If you have a universal capture plate it probably is welded to the pin box, check for a cracked weld. Otherwise as others have stated you have set screws and shims holding the plate to the pin box. As Jim's PDF states loose is normal. For your own knowledge and peace of mind call Pull Rite, their number is :
Pulliam Enterprises, Inc.
13790 E. Jefferson Blvd.
Mishawaka, IN 46545
Phone: (574) 259-1520
Fax: (574) 258-0289
Toll Free: 877-PULLRITE
If you are still unsure ask Pull-Rite for the number of the nearest dealer who makes house calls. I would not move the unit until I was positive it is OK.
One final thought, as a Pull-Rite owner if you do not have a Pull-Rite pulling adapter in your TV no one except another Pull-Rite TV can pull your RV. If they try to pull your RV without the adapter it will probably rip their hitch out of their TV or rip your pin box off your RV and drop your RV. The adapter cost about $125.00 and could be a day saver...
Also get a spray can of lube from Pull-Rite if you don't already have it. Ask for directions and lube often.
Good luck !
Tom