Epson LS10-B Series User Manual page 154

Maintenance 10. Ball Screw Spline Unit
(7) Remove the following.
(8) Remove three screws mounting the spline
(9) Remove four screws mounting the spline nut.
(10) Pull out the following toward the Arm #2 upper side.
142
Joint # motor unit Joint #4 motor unit Joint #4 intermediate pulley
U1 belt U2 belt Z belt
Follow the U2 belt removal steps in Maintenance: 8.2 Replacing the Timing Belt.
plate.
Ball screw spline unit Z belt U2 belt
3-M4×15
4-M5×15
LS10-B Rev.6