NoteAction
Timing belt, A3:Refit the timing belt to the pulley on the ball screw
and the motor. Ensure that the belt runs correctly
in the grooves.
1
3HAC081705-001
xx2300000589
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.
2
xx2300000557
Used belt: 139-149 HzUse a sonic tension meter to measure the timing
belt tension.
3
New belt:109-119 Hz
If the timing belt tension does not meet the require-
ment, readjust the motor with the adjusting screw.
4
Tightening torque: 6 Nm ±10%Tighten the motor flange screws when the timing
belt meets the requirement.
5
Refitting the outer arm to the inner arm
NoteAction
CAUTION
Whenever parting/mating motor and gearbox, the
gears may be damaged if excessive force is used.
1
Continues on next page
Product manual - IRB 930 411
3HAC086009-001 Revision: A
© Copyright 2023 ABB. All rights reserved.
5 Repair
5.6.8 Replacing the outer arm
Continued
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