Note
Action
Lift the
upper arm
with an overhead crane
and move it to its mounting position.
3
Make sure that the
upper arm
is placed in
a horizontal position.
Note
Refit the axis 3 side first!
4
Shown in the figure
of the upper arm components on page 192
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.
5
Art. no. is specified
Loctite 243.
Continues on next page
198
Product manual - IRB 660
3HAC025755-001 Revision: W
© Copyright 2006-2020 ABB. All rights reserved.
4 Repair
4.4.3 Replacement of upper arm
Continued
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