ABB IRB 6660 Product Manual page 328

4 Repair
4.7.2 Replacing the gearbox, axes 2- 3
Continued
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328
Action
Insert two screws, M12x50 in the holes to
neutralize the spring force. Screw in the
screws until they have proper contact with
the cylinder inside.
The length of the cylinder is now locked
and the balancing device is unloaded. It
should now be possible to easily rotate the
balancing device.
DANGER
Turn off all:
• electric power supply
• hydraulic pressure supply
• air pressure supply
to the robot, before entering the robot
working area.
Drain the gearbox.
Remove the motor cables of axis-2 or axis-
3 motor, depending on which gearbox is
being removed. Protect the cables from
getting damaged and from oil spill.
Remove one gearbox at a time!
Remove the axis-2 or axis-3 motor, depend-
ing on which gearbox is being removed.
Remove all remaining attachment screws
that secure the gearbox to the lower arm
system.
Axis 2: M16 and M12.
Axis 3: M12.
© Copyright 2007-2018 ABB. All rights reserved.
Note
See the previous figure!
Detailed in section Draining, axes 2 and 3
on page 151.
Note
Time-consuming activity!
Detailed in section Replacing motors, axes
2 and 3 on page 281
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Product manual - IRB 6660
3HAC028197-001 Revision: S