NoteAction
Screws: Hex socket head cap
flange screw M5x16 12.9 Lafre
2C2B/FC6.9+PrO-COat111 (9 pcs)
Refit the cover.
Note
For robots with protection class IP54 (option 3350-
540)
For robots with protection type Clean Room (op-
tion 3351-1)
Check the gasket for the cover before refitting the
cover.
Tip
Replace the gasket if needed.
3
Tightening torque: 1.2 Nm ±10%
For robots with protection class
IP30 (option 3350-300)
xx2100000943
Refit the screws.4
For robots with protection class
IP54 (option 3350-540)
For robots with protection type
Clean Room (option 3351-1)
xx2100002451
Concluding procedure
NoteAction
For robots with protection type Clean Room:1
Seal and paint the joints that have been opened.
See Cut the paint or surface on the robot before
replacing parts on page 118
Note
After all repair work, wipe the Clean Room robot
free from particles with spirit on a lint free cloth.
Calibration is detailed in section
Calibration on page 945.
Recalibrate the robot.2
Continues on next page
Product manual - IRB 920 943
3HAC075721-001 Revision: C
© Copyright 2022 ABB. All rights reserved.
5 Repair
5.8.2 Replacing the axis-2 gear unit sub-assembly
Continued
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