Epson LS3-401 series

Maintenance 10. Ball Screw Spline Unit
144 LS Rev.10
(6)
Remove the
Arm Top Cover and Arm Bottom Cover.
For details, refer to
Maintenance: 3. Covers.
(7)
Remove the following.
Joint # motor unit Joint #4 motor unit Joint #4 intermediate pulley U belt
F
ollow the U2 belt removal steps in Maintenance: 8.2 Replacing the Timing Belt.
(8)
Remove three screws mounting the spline
plate.
3-M4×12
LS3: 4-M4×10
LS6: 4-M4×1
2
(9)
Remove four screws mounting the spline nut.
(10
)
Pull out the following toward the Arm #2 upper side.
Ball screw spline unit Z belt U2 belt