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RS3 RS4 Maintenance 7. Joint #3
7.3 Replacing the Brake
Maintenance
Electromagnetic brake
parts
Hexagonal wrench
Tools
Nippers
Force gauge
Suitable cord (Length about 800 mm)
Material
Wire tie
A brake is mounted on the motor of Joint #3 to prevent the shaft from moving down due to
the weight of the end effector while the power to the Controller is OFF or while the motor
is in OFF status (MOTOR OFF).
Note that the brake will not work during the replacement procedure.
Move the shaft down to its lower limit before the replacement procedure following the
removal steps.
When tightening hexagon socket head cap bolts, refer to the 2.4 Tightening Hexagon Socket
NOTE
Head Cap Bolts.
Electromagnetic
(1) Remove the Joint #3 motor.
Brake
Removal
(2) Remove the brake from the brake plate.
66
Name
width across flats: 1.5 mm
width across flats: 2.5 mm
width across flats: 3 mm
width across flats: 4 mm
Follow the steps in 7.1 Replacing Joint #3 Motor - Removal (1) - (13).
Quantity
Note
1
1497639
1
For M3 set screw
1
For M3 screw
1
For M4 screw
1
For M5 screw
1
For cutting wire tie
1
Belt tension 75 N (7.7 kgf)
1
For belt tension
3
2-M3×8
Brake plate
RS series Maintenance Rev.3
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