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Maintenance 9. Joint #5
Installation: Joints #5, #6 Reduction gear unit set
1. C8, C8L:
Apply grease to the mating part of the sleeve and the fixing bolts.
(for grease leakage prevention for the reduction gear unit)
Fit the J4 sleeve and install the J4 sleeve holder.
Hexagon socket head cap bolts: 4-M3×6
Tightening torque: 2.0 ± 0.1 N·m
2. C8:
Install the Joint #4 reduction gear unit.
For details, refer to Installation steps in Maintenance 8.2 Joint #4 –
Replacing the Reduction Gear Unit.
C8L, C8XL:
Install the Arm #4 extension flange.
(C8XL does not have the sleeve.)
Hexagon socket head cap bolts: 12-M3×18
Tightening torque: 2.4 ± 0.1 N·m
3. Install the Joints #5 and #6 reduction gear unit.
C8:
Install the J4 flange to the Arm #3.
Hexagon socket head cap bolts: 8-M5×30
Tightening torque: 10.0 ± 0.5 N·m
Apply proper tension to the Joint #4 timing belt and fix the Joint
#4 motor unit.
For details, refer to Maintenance 8.1 Joint #4 – Replacing the
Motor, Installation steps (6).
284
C8 Rev.13
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