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4. Install the Joint #5 and #6 motors.
For details, refer to Installation steps in C12 Maintenance: 9.1 Joint
#5 – Replacing the Motor and C12 Maintenance: 10.1 Joint #6 –
Replacing the Motor.
5. Install the removed covers.
For details, refer to C12 Maintenance: 3. Covers.
6. Perform the calibration.
For details, refer to C12 Maintenance: 16. Calibration.
9.3 Joint #5 - Replacing the Timing Belt
Maintenance
Joint #5 timing belt
Parts
Belt tensile jig
Hexagonal wrench
(width across flats: 3 mm)
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.
C Series Maintenance Manual Rev.2
Name
330 mm
C12 Maintenance 9. Joint #5
Qty.
1
1655932
1
1674582
1
For M4 hexagon socket head cap bolts
1
For cross recessed head screws
1
For tightening torque control
1
Refer: Unitta U-505
Note
605
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