Maintenance 8. Joint #4
142 L
S20-B Rev.4
move the Joint #4 motor unit from the Arm
Fo
r details, refer to the Installation steps in
Maintenance: 8.2 Replacing the Timing Belt.
3-M3×12
+ Plain Washer
Joint #4 Motor
Hole for fixing the
extension shaft
Joint #4
Reduction Gear Unit
screws mounting Joint #4 motor
on the reduction gear unit.
Remove the cover of the hole for fixing the
shaft on the side of the reduction
and loosen the screws.
does not match, turn the motor slightly and move until the screw
extension shaft can be seen.
Remove Joint #4 motor unit from the reduction gear
unit.
Mount the cover of a hole for fixing
the extension shaft on the side of reduction gear
r unit upward to remove.
U pulley and U housing.
4-M4×10
U Housing
Joint #4
Reduction Gear Unit
U Pulley
6-M4×15
4-M4×20
Plain Washer
Plate
Joint #4
Reduction Gear Unit