ABB IRB 920 Product Manual page 683

3
Refitting the mechanical stopper
1
Product manual - IRB 920
3HAC075721-001 Revision: C
Action
Refit the screws and washers to the secure the
ball screw flange to the outer arm.
Tip
Pre-tighten the screws at 0.5Nm and slide the ball
screw up and down for five times. Then tighten
the screws at 3.8Nm to secure it.
Action
For robots with protection type Clean Room:
Clean the joints that have been opened and wipe
the parts free from particles with spirit on a lint
free. 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.
© Copyright 2022 ABB. All rights reserved.
5 Repair
5.6.11 Replacing the outer arm
Continued
Note
Screws: Hex socket head cap
screw M4x20 12.9 Lafre
2C2B/FC6.9 (4 pcs)
Washers: Spring washer 9x4.3x1
Steel (4 pcs)
Tightening torque: 3.5 Nm ±10%
xx2100001082
Note
Continues on next page
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