Why should bolts between the crane and the climbing frame never be adjusted or loosened during the jacking process?

Adjusting or loosening bolts between the crane and the climbing frame during the jacking process poses a critical safety risk, particularly regarding the stability of the entire assembly. If the bolts are altered while the system is under load, it can result in structural failure, potentially causing the machine deck to lose its attachment to the tower. This can lead to catastrophic outcomes, including the deck falling, which endangers personnel and equipment.

Maintaining the integrity of these fasteners is essential to ensure that the equipment remains securely in place, allowing the jacking process to proceed safely. The risk of dislodgment and subsequent accidents underscores why it is imperative to avoid any adjustments to these bolts during jacking operations.