Epson SCARA ROBOT

Maintenance 10. Ball Screw Spline Unit
G6 Rev.21 173
(12)
Remove the U2 belt from
the U2 small pulley
and remove the U1 belt from the U1 pulley and
U2 large pulley.
U1 pulley
Joint #4
Motor unit
Joint #4
Intermediate
shaft unit
U1 belt
U2 belt
U2 small pulley
U2 large pulley
(13)
P
ut the Joint #4 motor unit and the Joint #4
intermediate shaft unit to the shaft side and
remove the
belt from the pulley.
(14)
Remove the U2 belt and Z belt.
Remove the bolts securing the spline plate.
Hold the spline plate up and remove the U2 belt
and Z belt from the shaft by pulling them up.
3-M4×12
Z belt
U2 belt
Spline plate
(15)
Remove
the nut mounting screws of the ball
screw s
pline shaft on the lower part of Arm #2.
4-M4×12
(16)
Pull out
the ball screw spline unit from Arm #2.