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How should I re-assemble and pre-tighten the panels?
Pre-tightening should be done at around 50%-60% of the nominal torque values given in Appendix 2. Follow these steps: 1. Re-place the panels on the threaded rods as per the general drawing. 2. Check the interlocking of panels on girders. 3. Grease tips of threaded rods 1, 2, 3 and 4. 4. Pre-tighten nuts 1, 2, 3 and 4 with an impact wrench. 5. Repeat these operations for the other panels. 6. Grease tips of threaded rod 5. 7. Pre-tighten nut 5 with an impact wrench but turn around the unit. 8. Grease tips of all resting threaded rods. 9. Pre-tighten all nuts of 'circling around the top of the unit' with an impact wrench. 10. Respect pre-tightening sense as shown in the figures. 11. Pre-tighten all nuts of 'circling around the bottom' with an impact wrench. 12. Pre-tighten all nuts of girders with an impact wrench from down-to-up or up-to-down.
See the user manual Compabloc IOM Manual.pdf for more details.