C8 Maintenance 8. Joint #4
C Series Maintenance Manual Rev.2 351
8.2 Joint #4 - Replacing the Reduction Gear Unit
Name Qty. Note
Maintenance
Parts
Reduction
gear unit
C8-A701*** (C8)
1
1674609
Tools
Hexagonal
wrench
width across flats: 2.5 mm
For M3 hexagon socket head cap bolts
For M4 hexagon socket head cap bolts
For M5 hexagon socket head cap bolts
For M6 hexagon socket head cap bolts
Cross-point screwdriver (#2)
For cross recessed head screws
For tightening torque control
* The belt tensile jig is an assembly jig. Use the jig when adjusting belt tension.
The brake is mounted on each joint to prevent the arm from lowering due to its own weight while the Controller
power is OFF or the motor is OFF status. The brake does not work during replacement. Be careful when
performing maintenance work.