ABB IRB 920 Product Manual page 837

5
6
7
Refitting the cover of the outer arm
1
Product manual - IRB 920
3HAC075721-001 Revision: C
Action
Use a handheld dynamometer hooking to the strap
and pull the dynamometer to make the tension
falling in the allowed force range.
Note
During the measurement, make sure that all inter-
ferences that may affect the force are removed.
Pay attention to the force application direction.
Use a sonic tension meter to measure the timing
belt tension.
If the timing belt tension does not meet the require-
ment, loosen the motor screws and readjust.
Action
For robots with protection type Clean Room:
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.
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5.7.4 Replacing the axis-4 motor sub-assembly
Note
Used belt: 36.6
New belt:40
xx2100001126
Used belt: 139
New belt:110
Note
5 Repair
Continued
Continues on next page
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