Epson LS3-401 series Manipulator Manual page 137

(3) Turn OFF the Controller.
(4) Remove the Arm Top Cover.
(5) Cut off the wire tie binding the cables.
(6) Disconnect the connectors X241, X41. (Hold the claw to remove.)
(7) Remove the User Plate.
(8) Remove the Joint #4 motor unit from the Arm
NOTE

(9) Remove the pulley from the Joint #4 motor.
(10) Remove the motor plate from the Joint #4
LS Rev.10
For details, refer to Maintenance: 3.1 Arm Top Cover.
At this point, do not cut off a wire tie (in the duct fittings outlet) that binds the cables
to the User Plate.
For details, refer to Maintenance: 3.5 User Plate.
#2.
Remove the bolts securing the Joint #4 motor
on the motor plate and pull out the motor.
When replacing the motor of the Joint #4,
remove the cap from the old motor and install it
to the new one.
If the Manipulator is operated while the cap is
not installed, the motor may be damaged due to
entering of the foreign materials into the
rotating part of the motor sensor and
interference of the rotating part and the cables.
There is a brass bushing in one of the set screw
holes. Be sure to keep the bushing.
motor.
Maintenance 8. Arm #4
Joint #4
Motor Unit
3-M4×12
+ Washer
Motor Plate
cap
2-M4×10
Motor Plate
2-M4×8
Set Screw
+ Bushing
Pulley
123