NoteAction
Timing belt, A4:Refit the timing belt to the pulley on the ball screw
and the motor. Ensure that the belt runs correctly
in the grooves.
2
3HAC081706-001
xx2300000588
Screws: Hex socket head cap
flange screw 3HAB3412-520 M5x16
12.9 Lafre 2C2B/FC6.9+PrO-
COat111 (6 pcs)
Refit the screws and washers without fully
tightened.
3
xx2300000558
Used belt: 312-333 HzUse a sonic tension meter to measure the timing
belt tension.
4
New belt:88.4-92.7 Hz
If the timing belt tension does not meet the require-
ment, readjust the motor with the adjusting screw.
5
Tightening torque: 6 Nm ±10%Tighten the motor screws when the timing belt
meets the requirement.
6
Refitting the cable ferrule and bracket in the outer arm
NoteAction
Lay the internal harness in a natural state without
distortion.
1
Continues on next page
Product manual - IRB 930 473
3HAC086009-001 Revision: A
© Copyright 2023 ABB. All rights reserved.
5 Repair
5.7.4 Replacing the axis-4 motor sub-assembly
Continued
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