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4 Repair
4.7.2 Replacing the gearbox, axes 2- 3
Continued
6
7
8
9
10
11
12
13
14
Continues on next page
314
Action
Release the brakes of axis 2 to rest the
weight of the axis against the lock screw.
Release the brakes of axis 3 to rest the
weight of the axis against the pallets.
Remove the two plastic screws in the upper
end of the balancing device.
Note
Keep the plastic screws. They will be refit-
ted later.
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.
© Copyright 2013 ABB. All rights reserved.
Note
xx1000001111
See the previous figure!
Detailed in section
Draining, axes 2 and 3
on page
133.
Note
Time-consuming activity!
Detailed in section
Replacing motors, axes
2 and 3 on page 284
3HAC039838-001 Revision: C
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