IAI America RCP4W - Manual (Page 50)

4. Maintenance Inspection
44
[Procedures to Detach Seals and Ball Screw Guide]
1) Tighten the four hex socket head cap screws to hold the ball screw cover (at the circled places)
with a hex wrench to attach the cover. Next, slide in the four seals to mount them.
Seal
Tool to use: Hex wrench 2.5mm-sized