Epson G20 Series

Maintenance 8. Arm #4
176 G10 / G20 Rev.20
(7)
Remove the Joint #4 motor unit from Arm #2.
P
ull out the U belt from the U1 pulley to remove it.
4-M4×
15
+ Washer
Joint #4
motor unit
(8)
Remove the brake
hub.
Loosen the two set screws and pull out the brake
hub.
2-M3×4
set screw
Brake hub
(9)
Remove the brake.
There is a
wave washer between the housing and
the
bearing. Be careful not to lose it.
The gear for Z axis is a backlash
-less gear. Be
sure to keep the gear and pinion engage.
If the gear is out of joint, refer to step (7) in
Ball
Screw Spline Unit Installation
of Maintenance
10.2.1 Replacing the Ball Screw Spline Unit: G10
to
engage the g
ear.
4-M4×12
Brake
Wave washer
Bearing
(10)
Remove the Z belt from the Z pulley and remove
the U belt.
Remove the bolts securing the spline plate. Hold
the
spline plate and pull out the Z belt from the Z
pulley upwards to remove the U belt
.
3-M5×15
U belt
Spline plate