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Note
Action
xx2000001155
Release the holding brake by pressing the button
on the internal brake release unit.
3
Move the outer arm to a position where the axis 3
can be moved in full stroke.
4
xx2000001155
Press the brake release button and move the shaft
to its upper and lower limits manually.
5
xx2000001158
Visually inspect:
•
the stop blocks on the ball screw spline unit
•
the shaft of the ball screw spline unit
Look for abrasions, cuts or crush damages on the
spline, and grease amount on the shaft.
6
See
Apply grease to the shaft if it is not enough.
7
See
.
Replace the ball screw spline unit if wear or dam-
age is detected.
8
96
Product manual - IRB 920
3HAC075721-001 Revision: C
© Copyright 2022 ABB. All rights reserved.
4 Maintenance
4.4.3 Inspecting the ball screw spline unit
Continued
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