ABB IRB 6400R, Product On-Line Manual

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Motors and Gears Axes 4-6 Repairs
24 Product Manual IRB 6400R
4.9.2 Adjusting the intermediate gear unit bearings
Refer to Figure 5 Intermediate wheel unit.
The roller bearings (1) must be pretensioned to eliminate any backlash.
1. Remove the stop screw (2) and the locknut (3).
2. Clean the threads in the hub (4) and the locknut (3).
3. Apply Loctite 290 on the threads in the hub and the locknut.
4. Tighten the locknut (3). Torque 85 Nm ± 5% (for a replacement bearing).
Use the tool 3HAB 1022-1 together with the torque-wrench.
Note!
If the same bearing is fitted again, the torque should be 70-75 Nm.
5. Fit the stop screw (2), extra locking. Apply Loctite 243.
Tightening torque:
Locking nut in the intermediate wheel, item (3):85 Nm ± 5%
Figure 5 Intermediate wheel unit
4 1 2 3