Epson LS20-B Series

Maintenance 10. Ball Screw Spline Unit
152 L
S20-B Rev.4
Ball Screw
Spline Unit
Installation
(1)
Insert a new ball screw spline unit in the Arm #2.
(2)
Secure the spline nut from the bottom side of
the Arm #2.
4-M5×15
3-M4×15
(3)
Mount the following.
Joint #3 motor unit Joint #4 motor unit U belt Z belt
For details, refer to the following manuals:
Maintenance 7.1 Replacing Joint #3 Motor
Maintenance 8.1 Replacing Joint #4 Motor
(4)
Mount the Arm Top Cover and Arm Bottom Cover.
For details, refer to
Maintenance: 3. Covers.
(5)
Grease the shaft.
For details, refer to Maintenance: 10.1 Greasing the Ball Screw Spline Unit.
(6)
For the Cleanroom-model, mount the bellows.
For details, refer to Maintenance: 9. Bellows.
(7)
Mount the end effector, cables, and tubes.
(8)
Perform the calibration of Joints #3, #4.
For details, refer to Maintenance: 13. Calibration.