C4 Maintenance 5. Joint #1
66 C Series Maintenance Manual Rev.2
10. Remove the circular spline from the base.
Hexagon socket head cap bolt: 16-M4×20
Insert the screws to two parts on the circular spline as shown in
the photo. Tighten them evenly and remove the circular spline.
11. Remove the flexspline from the base.
Hexagon socket head cap bolt: 6-M6×15
12. Remove the friction plate (EKagrip) between the flexspline
installation surface and the flexspline.
This step is not necessary for the Manipulator with a serial
number C40E004191 or later since a friction plate (EKagrip) is
not included in the part.
13. Wipe grease using a cloth or similar material if it is attached to the base.