Maintenance 5. Actuator Units
304 N6 Rev.2
5.5.2 Replacing the Joint #5 Timing Belt
Name Qty Code, Note
Maintenance
Parts
Timing belt 1 1739205 (Common to Joint #5 and #6)
Tools
Hexagonal
width across flats: 3 mm 1 For M4 hexagon socket head cap bolts
Cross-point screwdriver (#2)
For cross recessed head screws
For tightening torque control
* The belt tensile jig is an assembly jig. Use this 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.