Step 1: Mount the Shoulder Actuator

Put the actuator EC-A5013-H17-100 (ID 13) on a flat surface, the port should be at the bottom, and the actuator shaft should be upward toward the ceiling.

Take Part 400_04B and put the actuator through the center of the part, and align the holes on the actuator with the holes around the circumference of the Part 400_04B.

Using 12 – M4x8 flat bolts, tighten each of them lightly into the holes, to keep the actuator and Part 400_04B aligned first.

After the parts are aligned:

• remove each of the 12 – M4x8 flat bolts in a star formation,
• apply threadlocker,
• then tighten them back to secure Part 400_04B and the actuator together.