Epson G Series Maintenance Manual page 172

G3 Maintenance 7. Joint #3
NOTE

When tightening hexagon socket head cap bolts, refer to the 2.4 Tightening Hexagon Socket
Head Cap Bolts.
Z belt (1) Place a new Z belt around the brake unit, and
Installation
(2) Mount the Joint #3 motor unit.
(3) Place the Z belt of Joint #3 motor unit around
(4) Put the Joint #3 motor unit and the spline
154
then mount it to the motor plate.
the ball screw spline unit and the pulley.
Check the gear grooves of the belt are fit into
those of the pulleys completely.
upper rotator parts downwards and place
them on the Arm #2 upper surface.
Be sure to keep the belt on the pulley.
3-M3×10
Motor plate
Z belt
Brake unit
2-M4×10
Joint #3
motor
Bush: M5
Pulley
Brake hub
Set screw:
2-M5×8
3-M4×12+ washer
Joint #3
motor unit
3-M4×12
Ball screw
spline unit
Z1 pulley
Z belt
G series Maintenance Rev.3