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C12 Maintenance 10. Joint #6
Removal: Joint #6 Timing belt
1. Turn OFF the Controller power.
2. Remove the Arm #4 side cover.
For details, refer to C12 Maintenance: 3. Covers.
3. Loosen the Joint #6 motor unit set screw.
Hexagon socket head cap bolt: 2-M4×15 (with a plain washer)
4. Remove the Joint #6 timing belt.
Installation: Joint #6 Timing belt
1. Place the Joint #6 timing belt around the pulley 1 and 2 of the Joint #6.
2. Secure the Joint #6 motor unit.
For details, refer to C12 Maintenance: 10.1 Joint #6 – Replacing the Motor, Installation steps (5) to (6)
and (10) to (11).
10.4 Joint #6 - Replacing the Electromagnetic Brake
Maintenance
Electromagnetic brake
Parts
Belt tensile jig
Hexagonal
wrench
Tools
Cross-point screwdriver (#2)
Feeler gauge (0.5 mm)
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.
616
Name
width across flats: 2 mm
width across flats: 2.5 mm
width across flats: 3 mm
Qty.
1
2172928 (Common to Joints #4, #5, #6)
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 cross recessed head screws
1
For adjusting the pulley position
1
Refer: Unitta U-505
C Series Maintenance Manual Rev.2
Note
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