NoteAction
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.
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.
DANGER
Make sure all safety requirements are met when
performing the first test run.
2
Removing the lower mechanical stopper
Use these procedures to remove the lower mechanical stopper.
Preparations before removing the lower mechanical stopper
NoteAction
Decide which calibration routine to use, and take
actions accordingly prior to beginning the repair
procedure.
1
Move the ball screw to lower position.2
Continues on next page
Product manual - IRB 920 409
3HAC075721-001 Revision: C
© Copyright 2022 ABB. All rights reserved.
5 Repair
5.6.1 Replacing the mechanical stopper
Continued
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