NoteArticle numberSpare part
Used for IRB 920T-6/0.45_0.3,
IRB 920T-6/0.55_0.3 and IRB
920T-6/0.65_0.3
3HAC072983-001Ball screw, BNS2020A+515LC5
Used for IRB 920T-6/0.45_0.18,
IRB 920T-6/0.55_0.18 and IRB
920T-6/0.65_0.18
3HAC070479-001Ball Screw Flange
With bolt3HAC073068-001Mechanical-Stop top, D20
With bolt3HAC073069-001Mechanical-Stop bottom, D20
Required tools and equipment
NoteArticle numberSpare part
Content is defined in section
Standard toolkit on page 996.
-Standard toolkit
Used to release the motor brakes.-24 VDC power supply
Inspecting, ball screw spline unit
Note
For robots with protection type Clean Room
For robots with protection class IP54
First remove the upper bellow and lower bellow according to Replacing the
bellows on page 421.
Then, use this procedure to inspect the ball screw spline unit.
NoteAction
Turn on the electric power supply to the robot.
If the robot is not connected to the controller, power
must be supplied to the connector R1.MP according
to the section Supplying power to connector R1.MP
on page 64.
1
DANGER
When releasing the holding brakes, the robot axes
may move very quickly and sometimes in unexpec-
ted ways!
Make sure the payload is disassembled or tooling
is properly supported; otherwise, fast downward
movements of axis 3 may cause severe hits.
2
Continues on next page
Product manual - IRB 920 95
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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