Can't get my grapple aux hose quick connection to engage. It's a straight connection so no way to bang on it to fully engage. The tractor side ball is free but I'm thinking maybe the grapple cylinder hose end ball is frozen or too much pressure on that end? Tried hitting the male ball with wooden handle to see if it might be frozen. Still no luck. It was really hard to get the other hose to connect as well but I was able finally do it using a wrench up against fitting and hit with a hammer. Can't quite do the same method on this side. Any other ideas to free it up?