I am changing the tubes on my samsung rptv. The tubes I am putting in are the same model, but they are Hitachi, instead of philips. not a big deal, except they came out of a different tv. The old tubes had a clamp holding the tube face onto the housing, so that was a breeze to remove. Now i'm not sure how the hitachi tube face is fastened to the housing. I've removed all of the screws, and drained the coolant, and I can't seem to figure out how to get it off. I'm thinking that it needs to be cut off, anyone have any advice, or ideas? Your help is appreciated.

Ok, figured it out. I just needed to break the seal, and it came off. Now i'm trying to attach the casing, there is a clamp on either side, and I can't figure out how to bend these to attach them. The tv is a samsung HCN4226W