Assembling the gears for the AX-12A Digital Servo by Dynamixel

Bushing are slid onto each side of the large gear. The large gear is installed on the servo. Grease is applied to the medium compound gear and installed on the pin as shown where the smaller pinion is mated with the large gear. The metallic gear can be used in place of this gear. The remaining gears are installed to complete the gear assembly using grease. The gears are spun to insure correct assembly. The top cover and bottom cover is installed using 4 long screws. Finally, the horn mount is installed using a single screw that is fastened to the center of the mount.