ABB IRB 920 - Page 445

NoteAction
For robots with protection type Clean Room:2
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.
Screws: Hex socket head cap
screw M5x25 12.9 Lafre
2C2B/FC6.9 (4 pcs)
Refit the pulley to the ball screw carefully.
Tip
Hold the ball screw to prevent it from dropping.
Or the ball screw may be destroyed.
3
Tightening torque: 4.4 Nm ±10%
xx2100001080
CAUTION
If the ball screw nut or ball screw spline nut go
out of the screw shaft, the ball screw is destroyed.
Be careful when you do any work that may cause
this.
Refit the screws.
Tip
Secure with the stopping tool to prevent the pulley
from rotating.
4
Refitting the upper mechanical stopper
NoteAction
For robots with protection type Clean Room:1
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.
Continues on next page
Product manual - IRB 920 445
3HAC075721-001 Revision: C
© Copyright 2022 ABB. All rights reserved.
5 Repair
5.6.3 Replacing the pulley on the ball screw upper position
Continued