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8. Remove the Joint #5 motor unit.
Hexagon socket head cap bolts: 2-M4×15 (with a plain
washer)
9. Remove the Joint #5 pulley 1 and the drive boss from the
motor shaft of the Joint #5 motor unit.
Pulley 1 and drive boss screws
Hexagon socket set screws: 2-M4×4 (with a brass bushing)
Drive boss and motor shaft screws
Hexagon socket set screws: 2-M4×4
There is a brass bushing on one of the set screws fixing the
drive boss and the pulley. Be careful not to lose it.
A: Pulley and motor shaft screws
B: Pulley and drive boss screws
C: Bushing
Drive boss
B
C12 Rev.3
Pulley
A
A
C
Maintenance 9. Joint #5
247
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