Installation
Alignment: Carefully lower the new slewing bearing into position. Ensure it sits squarely on the mounting surface. The lubrication holes must align with the grease passages on the machine.
Bolts and Torque: Use only new, high-strength mounting bolts as specified by Caterpillar. Apply a recommended thread-locking compound.
Tightening Sequence: This is critical. Follow the star-pattern sequence outlined in the service manual. Do not tighten bolts in a circle.
Torque Procedure: Tighten the bolts in multiple stages (e.g., 50% torque, then 80%, then 100% of the final torque) following the correct sequence. Finally, perform a final check by going through the sequence once more at the full specified torque value.
This 393-6548 slewing bearing is used for 336D 340D excavator.
Related part number:
3B-8489
227-6074
148-4685
352-7064
