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5.2.4 Joint #1 - Replacing the Electromagnetic Brake
Electromagnetic brake (Joints #1, #2)
Maintenance
J1 brake positioning jig *
Parts
Wire tie AB100
Hexagonal wrench
(width across flats: 3 mm)
Tools
Cross-point screwdriver (#2)
Torque wrench
* The J1 brake positioning jig is an assembly jig. Use the jig in relevant maintenance steps.
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.
Removal: Joint #1 Electromagnetic brake (M/C Cable Downward)
1. Remove the Joint #1 brake plate from the Joint #1 motor unit.
For details, refer to C12 Maintenance: 5.2.1 Joint #1-Replacing the Motor (M/C Cable Downward),
Removal steps (1) to (6).
NOTE
Do not disconnect the connector BT1. If the connector is disconnected, perform calibration.
2. Remove the Joint #1 brake from the brake plate.
Hexagon socket head cap bolts: 3-M4×25
C Series Maintenance Manual Rev.2
(M/C Cable Downward)
Name
C12 Maintenance 5. Joint #1
Qty.
1
2172926
1
1675081
1
1675753
1
For M4 hexagon socket head cap bolt
1
For cross recessed head screws
1
For tightening torque control
Note
537
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