NoteAction
DANGER
Make sure that the ball screw is supported with
something.
The sudden drop of the ball screw due the lost of
the axis-3 motor may cause danger.
3
xx2100001078
Loosen the screws of the axis-3 motor sub-as-
sembly to let the axis-3 timing belt free.
4
xx2100001079
Remove the timing belt.5
Releasing the ball screw flange
NoteAction
DANGER
Make sure that all supplies for electrical power,
hydraulic pressure, and air pressure are turned
off.
1
CAUTION
For robots with protection type Clean Room
Always cut the paint with a knife and grind the
paint edge when disassembling parts of the robot!
See Cut the paint or surface on the robot before
replacing parts on page 118.
2
Continues on next page
608 Product manual - IRB 920
3HAC075721-001 Revision: C
© Copyright 2022 ABB. All rights reserved.
5 Repair
5.6.9 Replacing the axis-4 timing belt
Continued
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