ABB OmniCore IRB 6720, Product Manual

Page: 488 / 640

Note Action
Lifting accessory (chain):
3HAC15556-1 Attach the Lifting accessory (chain) to an over-
head crane (or similar), then to the lifting eye in
the arm house and to a roundsling run through
the wrist. 11
Roundsling, 1 m
xx2200001619
Adjust the chain lengths to make the lift as level
as possible.
The figure shows an example of
lifting chain lengths. Keep chain (a)
shorter than chain (b).
Raise the overhead crane to stretch the chains
and roundslings. 12
Verify that the roundsling between the wrist and
the lower arm is stretched.
Loosening the cable brackets
Use this procedure to lift the lower and upper arm mounted together, with the cable
harness and DressPack kept installed in the base and in the frame.
Note
Keeping the cable harness and DressPack fitted on the robot during gearbox
replacement is only a recommendation. If it is not possible to put the lower and
upper arm close enough to the robot, the cable harness and DressPack in the
base and in the frame must be removed first.
Continues on next page
488 Product manual - IRB 6720
3HAC085697-001 Revision: C
© Copyright 2023 ABB. All rights reserved.
5 Repair
5.8.2 Replacing the axis-2 gearbox
Continued