IAI America RCP4-RA6R - Manual (Page 61)

5. Maintenance Inspection
55
5.6.4 How to apply grease
(1) With 2.5mm (RA5C, RA5R) or with 3mm (RA6C, RA6R) hex wrench, loosen the screws holding the frame
cover, and detach the frame cover.
Frame Cover
Ball Screw
Guide
Rod
Cover
Mounting Screw
(2) Pull out the rod. The ball screw will appear.
For some of the low lead actuators, the rod would not move manually with hand.
Move it with JOG operation of the controller.
Rod
Ball Screw