The Tower Crane Supervisor and Appointed Person sign off on the completion of the work. Disclaimer
Remove the main heel pins connecting the counter-jib to the slewing platform. Lower the counter-jib safely to the ground. Step 6: Cathead (Tower Head) and Cabin Removal
Before work commences, several logistical and safety hurdles must be addressed:
Verify that all technicians are wearing standard PPE: hard hats with chin straps, hi-vis vests, steel-toe boots, and full-body harnesses with double lanyards for fall arrest. 6. Step-by-Step Dismantling Sequence tower crane dismantling method statement
Specific to the exact crane model being dismantled. 3. Personnel Roles & Responsibilities
Implement Lockout/Tagout (LOTO) protocols on the main distribution board. Step 5.3: Mechanical Balancing & Hoist Rope Removal
Continuous radio or hand signal communication must be maintained between the operator, ground crew, and safety officer. 3. Standard Dismantling Sequence While specifics vary by crane model (like the Potain MCi 85 or Zoomlion 6517 ), the general top-down steps are: The Tower Crane Supervisor and Appointed Person sign
A dedicated high-angle rescue kit (including a rescue descender mechanism and suspension trauma straps) must be present on-site. At least two site crew members must be trained in high-altitude technical rescue.
Deploy trained watchpersons to prevent unauthorized entry into the drop zone.
[Step 1: Remove Counterweights] ──► [Step 2: Disassemble Jib/Boom] ──► [Step 3: Remove Counter-Jib] │ [Step 6: Lower Tower Mast] ◄── [Step 5: Remove Slewing Unit] ◄── [Step 4: Remove Tower Apex] Step 1: Counterweight Removal Step 6: Cathead (Tower Head) and Cabin Removal
Skilled team performing the mechanical disassembly. 3. Equipment & Tools
Clean the entire exclusion area of all tools, packing timbers, and mechanical debris.