Table of Contents
Advertisement
Maintenance 8. Joint #4
8.4 Joint #4 - Replacing the Electromagnetic Brake
Electromagnetic brake
Maintenance
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.
The electromagnetic brakes are common for Joints #4, #5, and #6.
NOTE
The Joints #5 and #6 electromagnetic brakes have an identification label for preventing misconnection
of the connectors. The label is not necessary for the Joint #4 electromagnetic brake. (There is no
connector identification label for the Joint #4.)
Removal: Joint #4 Electromagnetic brake
1. Remove the Joint #4 electromagnetic brake.
For details, refer to Maintenance: 8.1 Joint #4 – Replacing the Motor, Removal steps (1) through (8).
Installation: Joint #4 Electromagnetic brake
1. Mount the Joint #4 electromagnetic brake to the Joint #4 motor unit.
For details, refer to Maintenance: 8.1 Joint #4 – Replacing the Motor, Installation steps (2) through (11).
272
Name
width across flats: 2 mm
width across flats: 2.5 mm
width across flats: 3 mm
Qty.
2172928
1
(common for 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 drive boss position
1
Refer: Unitta U-505
Note
C8 Rev.13
Advertisement
Table of Contents
