"Opening the Nordlead is not difficult.
Remove the four black screws along the back, the two frontmost screws on each side (the two rear screws on each side should be left where they are as they form the hinge for the top cover), and finally the two large black screws on the underside of the machine (one is under the bend/mod assembly, the other is just behind the center of the keyboard). All screws are identical in size. (The 8 small screws underneath the keyboard hold the keyboard in place; there's no need to remove them).
After removing the screws, carefully swing up the red cover. It will open to about 50 or 60 degrees, don't force it beyond this point."
http://www.butoba.net/nordlead/nl2weight.html