How do you remove gas tank to replace gas lines on pe550 22cc weedeater edger?

If you look on the blade side of the edger you will see six screws on a metal plate,Do not remove them.

There are three holes under the plate that has three plastic plugs in them,remove with long needle nose pliers and then you will see three screws.

Loosen them just enough to remove tank.

Good luck.