Joint #5 - Replacing The Motor - Epson C Series Maintenance Manual

6-axis robots

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C8 Maintenance 9. Joint #5

9.1 Joint #5 - Replacing the Motor

AC servo motor 100 W

Belt tensile jig *

Cross-point screwdriver (#2)

Torque wrench

(width across flats: 8 mm)

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.

Attaching the labels

The motors are common for Joints #4, #5, and #6.

In order to prevent misconnection of the connectors, attach the label for the motor as shown

in the photos.

Joint #5 motor Locations of the connector labels

width across flats: 2 mm

width across flats: 2.5 mm

width across flats: 3 mm

(Common for Joints #4, #5, #6)

For M4 hexagon socket set screws

For M3 hexagon socket head cap bolts

For M4 hexagon socket head cap bolts

For cross recessed head screws

For tightening torque control

For air tube fitting

For adjusting the drive boss position

Refer: Unitta U-505

C Series Maintenance Manual Rev.2