General Information 118 Section 5
IMT 5005i / 6006i - Manual # 99904387
Turntable Bearing Thread Tightening
WARNING
Number 1 can be assigned to
any cap screw if the sequence
remains the same in reference
to number 1.
6
NOTES:
Refer to the Turntable Bearing Thread Tightening diagram for proper tightening-torquing sequence of the
turntable bearing to the crane base and crane mast. The total quantity of cap screws varies on crane model.
TIGHTENING PROCEDURE:
1. Refer to the Torque Data Chart to determine the proper torque value to apply to the size of cap screw used.
2. Follow the tightening sequence shown in the diagram.
3. Torque all cap screws to approximately 40% of the specified torque value by following the
sequence examples:
• .40 X 265 ft-lb = 106 ft-lb.
• .40 X 36 kg-m = 14.4 kg-m.
4. Repeat step 3 torquing all cap screws to 75% of the specified torque value. Continue to follow
the tightening sequence examples:
• .75 X 265 ft-lb = 199 ft-lb.
• .75 X 36 kg-m = 27 kg-m.
5. Using the proper sequence, torgue all cap screws to the listed torque value as determined from the
Torque Data Chart.
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