ABB IRB 660 Product Manual page 198

4 Repair
4.4.3 Replacement of upper arm
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3
4
5
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198
Action
Lift the upper arm with an overhead crane
and move it to its mounting position.
Make sure that the upper arm is placed in
a horizontal position.
Note
Refit the axis 3 side first!
Refit the axis-3 shaft:
1 Carefully refit the shaft, axis 3 (B) by
hand only.
Do not use force since the threads
can be damaged if fitting is not done
in the correct way.
2 Put the adapter on the shaft and fit
it.
Secure the shaft.
Tightening torque: 800 Nm.
3 Refit the sealing ring (F) on the shaft.
4 Refit the bearing (G) on the shaft with
the pressing tool, upper arm.
5 Fit an o-ring (H) on the sealing ring
(I) and fit it on the shaft.
Note
The o-ring shall be faced against the
bearing.
6 Fit the o-ring (L) on the sealing as-
sembly (J) and refit the sealing as-
sembly on the shaft.
7 Apply locking liquid (Loctite 243) on
the lock nut (K) and refit it using a
KM12 socket.
Tightening torque 90 Nm.
© Copyright 2006-2020 ABB. All rights reserved.
Note
Shown in the figure View of the assembly
of the upper arm components on page
Art. no. is specified Required equipment
on page 193
Loctite 243.
Product manual - IRB 660
3HAC025755-001 Revision: W
192.