NoteAction
DANGER
Turn off all:
• electric power supply
• hydraulic pressure supply
• air pressure supply
to the robot, before entering the robot working
area.
2
xx1000001101
Secure the lower arm with a lock screw in the
hole as shown in the figure to the right.
CAUTION
Tighten by hand!
3
See Replacement of linkage - upper
rod on page 201
Remove the linkage.4
See Replacing the linkage - lower rod
on page 205
See Replacement of linkage - link on
page 209
See Replacing the balancing device
on page 236
Remove the balancing device.5
Also seeRemove the parallel rod.6
Also seeRemove the cable harness in the upper and
lower arm.
7
Secure the cable harness in a way that it is pro-
tected from oil spill and damage.
See Replacement of upper arm on
page 191.
Remove the complete upper arm.8
See Replacing motors, axes 2 and 3
on page 258.
Remove the axes 2 and 3 motors.9
Also seeRemove the axes 2 and 3 gearboxes.10
CAUTION
The robot lower arm weighs 65 kg.
All lifting accessories used must be sized accord-
ingly!
11
Continues on next page
Product manual - IRB 660 223
3HAC025755-001 Revision: W
© Copyright 2006-2020 ABB. All rights reserved.
4 Repair
4.4.8 Replacing the complete lower arm
Continued