Epson RS Series Manual page 71

(5) Apply new grease evenly to the spiral
groove of the ball screw spline unit and the
vertical groove so that the groove is filled.
(6) Turn ON the Controller.
(7) Start the robot manager and move the shaft to the origin position. Be careful not to hit
peripheral equipment.
(8) After moving to the origin position, reciprocate the shaft. The reciprocating operation is
a low power mode operation program that performs from the upper limit to the lower
limit. Run for about 5 minutes to spread the grease over the shaft.
(9) Turn OFF the controller.
(10) Wipe off excess grease on the end of the
spline nut and mechanical stop.
RS series Rev.4
Regular Inspection 1. General Maintenance for RS3 RS4
End of the
spline nut
Grease application example
Figure: RS3-351*
61