ABB IRB 4400 - 45 Product Manual page 132

4 Repair
4.3.3. Replacement of complete arm system
Continued
130
Action
5. Move the upper arm into a resting position against
the lower arm.
Lock the upper arm in this position with securing
slings around the lower and upper arm (A), as
shown in the figure to the right.
Note! If the arms are not properly secured, the
upper arm may move during the lift and cause a
drop of the complete arm system.
6. Unload the weight of the arm system with lifting
slings and a crane.
7. Remove the balancing device.
8. Remove the parallel arm.
9. Remove the attachment screws and friction
washers, lower arm.
10. Lift away the complete arm system.
Make sure the upper and lower arm are properly
secured to each other during the lift.
Info/Illustration
xx0300000142
Note! The figure shows the IRB
4400.
The same position of the upper
arm resting against the lower
arm, should be applied for the
IRB 4450S.
Detailed in section
Replacement of balancing
device on page 172.
Detailed in section
Replacement of parallel arm /
Replacement of bearing on
page 168.
Shown in the figure Location of
complete arm system on page
128.
Continues on next page
3HAC022032-001 Revision: E