ABB IRB 920 Product Manual page 830

5 Repair
5.7.4 Replacing the axis-4 motor sub-assembly
Continued
Refitting the axis-4 timing belt
1
2
3
4
5
Continues on next page
830
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.
Refit the timing belt to the pulley.
Refit the timing belt to the motor. Ensure that the
belt runs correctly in the grooves.
Refit the screws and washers without fully
tightened.
Hang a strap to the motor and hold the transmis-
sion module.
Note
Just tighten the tool.
© Copyright 2022 ABB. All rights reserved.
Note
Timing belt, A4-1:
3HAC070470-001
xx2100001097
Screws: Hex socket head cap
screw M4x16 12.9 Lafre
2C2B/FC6.9 (2 pcs)
Washers: Plain washer machining
4.2x9x2 steel (2 pcs)
Tightening torque: 2.6 Nm ±10%
xx2100001095
Product manual - IRB 920
3HAC075721-001 Revision: C