Locate
the gearbox housing parts as shown in the picture. The parts need to be
separated from the plastic frame.
Use
a utility/hobby knife or a pair of closecut snips to remove each
piece. Clean off any excess plastic that may left where the parts
were attached to the plastic frame.
Locate
the left side housing part (use the picture as a reference) and 2 of the
brass eyelets. Place the eyelets into the holes as shown in the picture.
Also place 2 of the brass eyelets into the holes of the middle piece of the
housing.
Place
the short side of the round shaft into the left side hole as shown in the
picture.
Locate
one of the blue G4 gears, using the picture as a guide.
Hold
the short end of the hex shaft and slide the blue gear onto the long end as
shown in the picture. Be sure that the large gear is facing the gear hub.
The gear goes onto the long side of the shaft.
Slide
the hex shaft into the right hole as shown. The short side of the 2 axles should now be about
lined up with each other.