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5 Repair
5.6.6 Replacing the axis-4 timing belt
Continued
Refitting the axis-3 motor sub-assembly
1
2
3
4
Continues on next page
352
Action
Refit the motor with flange to the outer arm.
Tip
Move the internal harness out of the way.
Refit the timing belt to the pulley on the ball screw
and the motor. Ensure that the belt runs correctly
in the grooves.
Refit the screws and washers without fully
tightened.
Use a sonic tension meter to measure the timing
belt tension.
If the timing belt tension does not meet the require-
ment, readjust the motor with the adjusting screw.
© Copyright 2023 ABB. All rights reserved.
Note
xx2300000594
Timing belt, A3:
3HAC081705-001
xx2300000589
Screws: Hex socket head cap
flange screw 3HAB3412-520 M5x16
12.9 Lafre 2C2B/FC6.9+PrO-
COat111 (6 pcs)
xx2300000557
Used belt: 139-149 Hz
New belt:109-119 Hz
Product manual - IRB 930
3HAC086009-001 Revision: A
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