ABB IRB 6620 Product Manual page 284

4 Repair
4.7.2 Replacement gearbox axis 2
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Action
DANGER
Turn off all:
• electric power supply to the
robot
• hydraulic pressure supply
to the robot
• air pressure supply to the
robot
Before entering the robot working
area.
Remove the cable harness, axes
1-3.
Let the removed part of the cable
harness hang loose and take care
not to damage it during the remov-
al process.
Remove the attachment screws
M16x50 (16 pcs) that secure the
lower arm to gearbox axis 2.
Remove the upper and lower arms
and put them down on the floor.
Remove motor axis 2.
Remove two attachment screws
(M12x60) parallel to each other.
Fit two guide pins in the holes,
parallel to each other.
CAUTION
The gearbox weighs 98 kg! All lift-
ing equipment used must be sized
accordingly!
© Copyright 2006-2020 ABB. All rights reserved.
Note
Detailed in the section Replacement of cable har-
ness, lower end (axes 1-2) on page
Shown in the figure Location of gearbox axis 2 on
page 281.
Detailed in the section Replacement of motor axis
2 on page 242.
Product manual - IRB 6620
3HAC027151-001 Revision: W
180.