4 Repair
4.6.5. Replacement of motor, axis 5 IRB 6640
3HAC026876-001 Revision: F
348
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3. Remove the wrist unit.
Detailed in the section
4. Place the wrist unit safely on a workbench, in a
fixture or similar.
5. Remove the cover on top of the motor by
unscrewing its four attachment screws.
6. Remove the cable gland cover at the cable exit by
unscrewing its two attachment screws.
7. Disconnect all connectors beneath the motor
cover and remove theseparate cable of the axis 5
motor.
8. In order to release the brake, connect the 24 VDC
power supply.
Connect to either:
- connector R4.MP5 (in the motor):
•
+ : pin 2
•
- : pin 5
- connector R3.MP5 (on the
separate cable, if not removed):
•
+: pin C
•
-: pin D
9. Remove the motor by unscrewing its four
attachment screws and plain washers.
10. Fit the two guide pins in two of the motor
attachment screw holes.
11. If required, press the motor out of position by
fitting removal tool, motor, M10 to the motor
attachment screw holes.
Always use the removal tools in pairs
and diagonally!
12. Lift the motor to get the pinion away from the gear
and disconnect the brake release voltage.
Make sure the motor pinion is not
damaged!
13. Remove the motor by gently lifting it straight out. Keep track of the shims between the
motor flange and the wrist housing.
14. Measure the distance between the motor flange,
included eventual shims, and the outer surface of
the pinion, with measuring tool.
Make a note of the distance.
15. Press out the pinion from the dismounted motor,
with the equipment included in the oil injector kit.
NOTE!
If the pinion is damaged the complete wrist unit
must be replaced!
Replacing the complete wrist unit is
detailed in section
complete wrist unit on page 264
.
Action
Note
Continued
Continues on next page