4 Repair
4.4.3. Replacement of complete upper arm
3HAC022033-001 Revision: E
254
©
Co
py
rig
h
t 200
4 - 20
08 ABB.
All r
ig
h
ts r
e
se
rv
ed
.
Refitting, upper arm
The procedure below details how to refit the upper arm to the robot.
6. Run the
lifting chain
from the rear lifting point through
the overhead crane hook, through the hoisting block to
the lifting eye in the front.
.
7. Use the hoisting block to adjust the tension in the
chain in order to lift the upper arm completely level.
8. Drain the oil from gearbox 3.
9. Disconnect connector R2.M5/6 at the rear cable
division point as well as all remaining connections to
the upper arm.
10. Disconnect all connectors inside motors 3 and 4.
11. Remove all brackets securing cabling to the upper arm
by unscrewing their attachment screws respectively.
12. Raise the lifting equipment to take the weight of the
upper arm.
13. Carefully remove the
upper arm attachment screws
.
Make sure that the upper arm is lifted in a completely
level position in all planes in order not to damage the
upper arm!
Shown in the figure
30 pcs.
14. Lift the upper arm and place it on a secure surface.
15. Remove the sealing from the lower arm.
Action
Note
Action
Note/Illustration
1.
DANGER!
Turn off all electric power, hydraulic and pneumatic
pressure supplies to the robot!
For Foundry Prime robots: Do not turn off the air
pressure to motors and SMB.
Continued
Continues on next page
