IAI America SSPDACR - Manual (Page 82)

14. Motor Replacement Procedures
74
Cover Coupling
Ball screw
Coupling on the
ball screw side
Coupling on
the motor side
Motor unit
14.1 Removing the Motor Unit
(1) Removing the coupling cover
Turn off the power supply to the controller, and then disconnect the motor cable and encoder cable.
Remove the two screws used to secure the cover on the motor side using an Allen wrench of 2.5 mm across flats
for ISDB, ISPDB, ISDBCR and ISPDBCR-S, or 3 mm across flats for all other models.
The coupling will be visible.
Move the slider to a position where the coupling bolt can be loosened.
If the actuator is equipped with a brake, connect the encoder cable and apply power to the controller to release
the brake. Then move the slider so that the coupling bolts on the ball screw side can be removed.
After moving the slider, deactivate the brake release, turn off the power to the controller and disconnect the
encoder cable.
Caution: x When the actuator is vertically installed, exercise due caution so that the slider does not fall
when the brake is released. Be sure to support the slider externally to prevent it (work part)
from falling.
x If you attempt to move the slider with the motor cable connected, the slider movement will
become heavy due to regenerative braking. Disconnect the motor cable before moving the
slider.