This is a 3-piece model, so take your time in removing each piece from the
etched metal frame they come in. The best way to remove these is with a hard surface
and a very sharp hobby knife blade (be careful!)
The first piece you will
need is the middle, or "box" piece.
As you might have already
noticed, this piece has a rectangle etched into the bottom of it. The first step
is to fold each side down so that you create a box. The half-etched fold lines
should be on the inside of the folds.
Next, position and glue the bottom
piece (the one with rivets on it) directly on the cab of you model, being careful
to not plug the long slots that the AC box piece (that you just folded) will fall
One the base is glued in place, you will need to mount the box piece
on top of it using glue. Prior to gluing, make sure that all of your sides are
at 90 degree angles from each other to ensure a proper fit in the base slots.
After your box is secured in place, you can attach the top piece of the
AC unit with glue. The 5 holes in the box piece are there to allow room for the
glue to form a stong bond.