Epson LS20, Manipulator Manual, Page: 100 / 176

Maintenance 5. Arm #1
88 LS20 Rev.4
(7) Loosen the motor mounting screws on the
Joint #1 motor flange and remove the motor
unit
There is an O-ring in the assembly position of
the motor and Joint #1 flange. Be sure to
keep the O-ring.
6-M5 × 15
Joint #1
Motor Unit
The motor can be removed while the Arm #1 and the Top plate are mounted.
When removing the motor with the Top plate mounted, use the torque wrench with
the long hexagonal bit, or lengthen the general hexagonal wrench by using the metal
pipe to loosen the screws.
To remove M5 × 15 screws on the front side, remove the plate on the front side of the
base and insert the wrench from the front and loosen the screws.
Metal pipe
Torque wrench
Long
hexagonal
bit
General
hexagonal
wrench
After loosening the screws, rotate the motor to
pull out. If the motor is hard to pull out, pull
the motor while rotating the Arm #1 slowly.
Pull out while
rotating
(8) Remove the waveform generator from the
Joint #1 motor.
There is a brass bushing in one of the set
screw holes. Be sure to keep the bushing.
2-M5×8 Set Screw
M5 Brass Bushing
Waveform Generator
Joint #1 Motor
(9) Remove the motor mounting screws and then
remove the motor flange and O-ring.
4-M5 × 18
+ Plane Washer
Joint #1 Motor
Motor Flange
O-ring

NOTE