NoteAction
Screws: Hex socket head cap
screw M2.5x6 12.9 Lafre
2C2B/FC6.9 (8 pcs)
For robots with protection class IP54 (option 3350-
540)
For robots with protection type Clean Room (op-
tion 3351-1)
3
Tightening torque: 0.8 Nm ±10%
xx2100002401
Refit the screws to the flange with bearing.
xx2100002399
For robots with protection class IP54 (option 3350-
540)
For robots with protection type Clean Room (op-
tion 3351-1)
Refit the top cover to the ball screw.
Tip
The top surface of the cover should be flush with
the top end of the ball screw.
4
Screws: Hexagon socket set
screws with flat point, ISO 4026
stainless steel M3x8 (2 pcs)
For robots with protection class IP54 (option 3350-
540)
For robots with protection type Clean Room (op-
tion 3351-1)
5
Tightening torque: 0.4 Nm ±10%
xx2100002398
Refit the locking screws.
Continues on next page
428 Product manual - IRB 920
3HAC075721-001 Revision: C
© Copyright 2022 ABB. All rights reserved.
5 Repair
5.6.2 Replacing the bellows
Continued
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