Epson LS20 Series

Maintenance 10. Ball Screw Spline Unit
LS20 Rev.4 137
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.
3-M4×15
4-M5×15
(3)
Mount the
following.
Joint #3 motor unit, Joint #4 motor unit, U belt, Z belt
For details, refer to
Maintenance: 7.1 Replacing Joint #3 Motor s.
Maintenance:8.1 Replacing Joint #4 Motor s.
(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.