NoteAction
Used belt: 315Use a sonic tension meter to measure the timing
belt tension.
8
New belt:260
If the timing belt tension does not meet the require-
ment, loosen the motor screws and readjust.
9
Screws: Hex socket head cap
screw M4x10 12.9 Lafre
2C2B/FC6.9 (3 pcs)
Refit the pulley protection cover and secure with
screws.
10
Tightening torque: 0.8 Nm
xx2100001047
Refitting the cable ferrule and bracket in the outer arm
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.
Lay the internal harness in a natural state without
distortion.
2
Screws: Hex socket head cap
screw M3x8 12.9 Lafre 2C2B/FC6.9
(2 pcs)
Refit the cable ferrule and secure it with the
screws.
Tip
The air hoses should face the process hub side.
3
Tightening torque: 1.2 Nm ±10%
xx1800002849
Tip
The position with wrapped tape is the marked
position for the cable ferrule.
Tip
Align all the cable ferrules so that the cable is in
a natural bending position to avoid twisting.
Continues on next page
Product manual - IRB 920 789
3HAC075721-001 Revision: C
© Copyright 2022 ABB. All rights reserved.
5 Repair
5.7.2 Replacing the axis-2 motor sub-assembly
Continued
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