ABB IRB 660 Product Manual page 290

4 Repair
4.7.2 Replacing the gearbox, axes 2- 3
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290
Action
Fit the lock screw in the lower arm to secure
axis 2.
CAUTION
Tighten by hand!
Secure the weight of the upper arm with
roundslings in an overhead crane.
Raise the lifting equipment to take the
weight of the upper arm.
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 by the roundslings and
overhead crane.
Remove the two plastic screws in the upper
end of the balancing device.
Note
Keep the plastic screws. They will be refit-
ted later.
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Note
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Product manual - IRB 660
3HAC025755-001 Revision: W