Tower Crane Dismantling: Method Statement
Rig the assist crane to the main jib using a certified lifting beam and slings hooked into the manufacturer’s specified lifting points.
Taglines (minimum two per lift, made of non-conductive material).
: Details of the auxiliary mobile crane, lifting gears, and specialized tools. Risk Assessment
Certified web slings, wire ropes, and shackles (tagged and color-coded). Calibrated hydraulic torque wrenches and impact guns. Sledgehammers, drift pins, and alignment tools. Two-way radios operating on a dedicated, secure frequency. 5. Pre-Dismantling Requirements & Site Preparation 5.1 Exclusion Zones & Logistics tower crane dismantling method statement
The first major mechanical step involves removing the counter-weights.
Dismantle the counter-jib after the jib is removed.
No loose tools permitted at height. All hand tools must be tethered to the worker’s harness. Exclusion zones must be enforced below. Rig the assist crane to the main jib
Ensure the crane's balance is maintained during each step, especially when removing counterweights.
Hydraulic climbing cages, torque wrenches, and impact guns must be calibrated and inspected for defects. 5. The Step-by-Step Dismantling Sequence
Lift the mast section clear and lower it to the ground. Repeat this sequence until the base section is reached. Step 8: Base Section and Anchor Disassembly Risk Assessment Certified web slings, wire ropes, and
The general principle: Typical sequence: (1) Auxiliary jib/luffing jib (if fitted), (2) Jib sections, (3) Counter-jib, (4) Counterweights, (5) Tower sections (top-down), (6) Base.
A minimum safety margin of 20% over the heaviest single component weight (usually the counter-jib or slewing platform). 4.3 Documentation and Tool Check
[Insert radius] meters at maximum load weight. 4.2 Tackle and Tools
Directs the mobile crane operator and tower crane crew using radio communications and standard hand signals.