I purchased a home with a theater already in it with a Vidikron Vision One installed into the ceiling with a Chief EVCM-100D Lift. My experience with these things are kind of limited so I wanted to check with you guys real quick before I plug it in and try to lower the projector. I found some instructions for installing the lift on the web; it says that there are four clamps (Hasps), two on each side of the lift, that should be unlocked. I assume that these guys are used for precautionary matters so the weight of the projector doesn't wear out the lift. I just want to confirm with you guys that I need to unhook them before the lift can be lowered and I can get a better look at this projector - and by doing so the whole projector isn't going to come crashing down.