C8 Maintenance 7. Joint #3
C Series Maintenance Manual Rev.2 333
Installation: Joint #3 Motor
1. Install the motor plate to the Joint #3 motor.
Hexagon socket head cap bolts: 4-M5×15
Tightening torque: 8.0 ± 0.4 N·m
Be careful of the assembly direction of the motor plate. (See
the figure.)
2. Mount the Joint #3 electromagnetic brake to the Joint #3
motor unit.
Hexagon socket set screws: 2-M5×10 (with a brass bushing)
Tightening torque: 3.9 ± 0.2 N·m
Be careful of the assembly direction of the Joint #3
electromagnetic brake. (See the photo.)
Fix the set screws while pressing the electromagnetic brake to
the motor plate.
The brass bushing is not necessary for the screw for the flat
surface (D-cut). Set the bushing to the other screw and then
fix the screw.
If the screw positions are incorrect or the bushing is not set, it
may cause damage on the side of the brake and may result in the
part being unable to be removed.
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