Refitting the axis-4 timing belt
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.
Timing belt, A4-1:Refit the timing belt to the pulley.2
3HAC070470-001
xx2100001097
Refit the timing belt to the motor. Ensure that the
belt runs correctly in the grooves.
3
Screws: Hex socket head cap
screw M4x16 12.9 Lafre
2C2B/FC6.9 (2 pcs)
Refit the screws and washers without fully
tightened.
4
Washers: Plain washer machining
4.2x9x2 steel (2 pcs)
Tightening torque: 2.6 Nm ±10%
xx2100001095
Hang a strap to the motor and hold the transmis-
sion module.
Note
Just tighten the tool.
5
Continues on next page
830 Product manual - IRB 920
3HAC075721-001 Revision: C
© Copyright 2022 ABB. All rights reserved.
5 Repair
5.7.4 Replacing the axis-4 motor sub-assembly
Continued
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