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10.2 Joint #6 - Replacing the Reduction Gear Unit
(Replacing the Joints #5, #6 Reduction Gear Unit Set)
For replacement of the Joint #5 and Joint #6 reduction gear unit, replace the Joints #5, #6 reduction gear unit set.
The Joints #5 and #6 reduction gear unit set is adjusted in advance.
Maintenance
Joints #5, #6 Reduction gear unit set
Parts
Belt tensile jig*
Hexagonal
wrench
Tools
Cross-point screwdriver (#2)
Torque wrench
Spanner ( width across flats: 8 mm)
Feeler gauge (0.5 mm)
Belt tension meter
For details of the replacement procedure, refer to C12 Maintenance: 9.2 Joint #5 - Replacing the Reduction Gear
Unit (Replacing the Joints #5, #6 Reduction Gear Unit).
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.
10.3 Joint #6 - Replacing the Timing Belt
Maintenance
Joint #6 timing belt
Parts
Belt tensile jig
Hexagonal wrench
(width across flats: 3 mm)
Tools
Cross-point screwdriver (#2)
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.
C Series Maintenance Manual Rev.2
Name
width across flats: 2 mm
width across flats: 2.5 mm
width across flats: 3 mm
width across flats: 4 mm
width across flats: 5 mm
Name
339 mm
C12 Maintenance 10. Joint #6
Qty.
1
1821979
1
1674582
1
For M4 hexagon socket set screws
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
1
For cross recessed head screws
1
For tightening torque control
1
For air fittings
2
For drive boss position adjustment
1
Refer: Unitta U-505
Qty.
1
1655933
1
1674582
1
For M4 hexagon socket head cap bolts
1
For cross recessed head screws
1
Refer: Unitta U-505
Note
Note
615
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