Reassembling the Upper Structure:
Once the bearing is securely fastened to the undercarriage, carefully lower the upper structure onto it.
Align the bolt holes on the upper frame with those on the top race of the slewing bearing.
Final Bolting:
Install and tighten the top set of bolts using the same precise, cross-pattern torque sequence as used on the bottom side.
This 229-1077 slewing bearing is used for 312D 313D 312C 312D2 313D 313D2 excavator.
Related part number:
3B-8489
229-1078
148-4685
