ABB IRB 920 Product Manual page 95

Spare part
Ball screw, BNS2020A+515LC5
Ball Screw Flange
Mechanical-Stop top, D20
Mechanical-Stop bottom, D20
Required tools and equipment
Spare part
Standard toolkit
24 VDC power supply
Inspecting, ball screw spline unit
1
2
Product manual - IRB 920
3HAC075721-001 Revision: C
Note
For robots with protection type Clean Room
For robots with protection class IP54
First remove the upper bellow and lower bellow according to
bellows on page 421.
Then, use this procedure to inspect the ball screw spline unit.
Action
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.
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.
© Copyright 2022 ABB. All rights reserved.
4.4.3 Inspecting the ball screw spline unit
Article number Note
3HAC072983-001 Used for IRB 920T-6/0.45_0.3,
IRB 920T-6/0.55_0.3 and IRB
920T-6/0.65_0.3
3HAC070479-001 Used for IRB 920T-6/0.45_0.18,
IRB 920T-6/0.55_0.18 and IRB
920T-6/0.65_0.18
3HAC073068-001 With bolt
3HAC073069-001 With bolt
Article number Note
- Content is defined in section
Standard toolkit on page
- Used to release the motor brakes.
Note
4 Maintenance
Continued
996.
Replacing the
Continues on next page
95