ABB IRB 920 Product Manual page 615

2
3
Refitting the axis-4 second timing belt to the pulley
1
2
Product manual - IRB 920
3HAC075721-001 Revision: C
Action
Refit the transmission module assembly to the
outer arm.
Tip
Place the axis-4 second timing belt through the
ball screw flange.
Secure with the screws without fully tightened.
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 belt to the pulley.
Ensure that the belt runs correctly in the grooves.
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5.6.9 Replacing the axis-4 timing belt
Note
Screws: Hex socket head cap
screw M4x20 12.9 Lafre
2C2B/FC6.9 (4 pcs)
Washers: Plain washer machining
4.2x9x2 steel (4 pcs)
Tightening torque: 2.6 Nm ±10%
xx2100001091
Note
Timing belt, A4-2:
3HAC070471-001
xx2100001086
Continues on next page
5 Repair
Continued
615