Hi all I fitted 4 years ago the Alko 3004 hitch to my van, yesterday when getting ready to come home the handle wouldnt stay up I had to hold it up and lower it ont the towball, normally when i lift the handle it stays up on its own until it lowered on to the towball then clicks on, Is there a spring in side that needs replacing and is it a job that can be done at home or is it a new hitch?