I bought a wreck of a pontoon boat. The power trim doesn't work but the guy had a new pump to put in it. Problem is I can't figure out how to lift the motor up so that the "safety lock" can be engaged. I see in some of the parts manuals that there's a release lever... but that's not on mine or it's been broken off. What do I do? Am I missing something? We tried to manual left the motor and it's definitely hitting something on the way up.