ABB IRB 920 Product Manual page 826

5 Repair
5.7.4 Replacing the axis-4 motor sub-assembly
Continued
2
3
Removing the axis-3 timing belt
1
2
3
Continues on next page
826
Action
Disconnect the axis-4 motor connectors.
• R2.MP4
• R2.FB4
Snap loose and remove the female head of the
connectors from the bracket.
Note
The harness are not visible due to the cleanness
requirements of the illustration. They are still ex-
isting inside the cable ferrule in the actual situ-
ation.
Action
DANGER
Make sure that all supplies for electrical power,
hydraulic pressure, and air pressure are turned
off.
CAUTION
For robots with protection type Clean Room
Always cut the paint with a knife and grind the
paint edge when disassembling parts of the robot!
See Cut the paint or surface on the robot before
replacing parts on page 118.
DANGER
Make sure that the ball screw is supported with
something.
The sudden drop of the ball screw due the lost of
the axis-3 motor may cause danger.
© Copyright 2022 ABB. All rights reserved.
Note
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xx2100000939
Note
Product manual - IRB 920
3HAC075721-001 Revision: C