Maintenance 7. Joint #3
120 L
S20-B Rev.4
Remove the Joint #3 motor from the motor
plate.
The
Z belt is placed around the pulley.
remove the Joint #3 motor, tilt the motor
slightly and pull it upward while avoiding the
belt.
Joint #3 Motor
4-M4×15+
Plain washer
Motor Plate
Z Belt
Remove the brake from the brake plate.
Loosen the screws of the brake hub and
remove
the brake hub from the pulley shaft
#3 motor unit.
There is a brass bushing on one of the set
screws.
Be careful not to lose it.
Joint #3
Motor
M3×4 Set Screw
+M3 Bushing
Brake Hub
M3×4
Set Screw