Hi I have a 1993 hi-Lo camper that I left up this winter . Not good idea but when I go to lower it I can't get it to lower without pulling real hard on the safety release. I see that the top isn't going all the way up because I can't hear the safety bar drop into place and the inner front and rear cabinets are not all the way up , any ideas ? Cable adjustment ? It worked ok at end of last year