ABB Robotics IRB 1100 Product Manual page 530

5 Repair
5.8.3 Replacing the axis-3 gearbox
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530
Action
Use a handheld tensiometer hooking to the screw
and pull the tensiometer to reach the initial refer-
enced force.
Secure the motor with the screws.
Use an acoustic tensiometer to measure the tim-
ing belt tension.
If the timing belt tension does not meet the require-
ment, loosen the motor screws and readjust.
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Note
Initial referenced force for used
belt: 21.7-23.94 N (for reference
only)
Initial referenced force for new belt:
31-34.2 N
xx1900000028
Screw: M4x12 12.9 Gleitmo
603+Geomet 500 (3 pcs)
Washer, 3HAC063985-001 (3 pcs)
Tightening torque: 3 Nm
xx1800003008
Used belt: 102-109 Hz
New belt: 113-143 Hz (for reference
only)
Product manual - IRB 1100
3HAC064992-001 Revision: C