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8.2 Joint #4 - Replacing the Reduction Gear Unit
Reduction
gear unit
Maintenance
Parts
(Joint #4)
Belt tensile jig*
Hexagonal
wrench
Tools
Cross-point screwdriver (#2)
Torque wrench
Belt tension meter
* 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.
C8 Rev.13
Name
C8-A701*** (C8)
C8-A1401*** (C8XL)
C8-A901*** (C8L)
width across flats: 2.5 mm
width across flats: 3 mm
width across flats: 4 mm
width across flats: 5 mm
Maintenance 8. Joint #4
Qty.
1674609
1
1675434
1
1
1674582
1
For M3 hexagon socket head cap bolts
1
For M4 hexagon socket head cap bolts
1
For M5 hexagon socket head cap bolts
1
For M6 hexagon socket head cap bolts
For cross recessed head screws
1
1
For tightening torque control
1
Refer: Unitta U-505
Note
259
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