ACC/Specific/TBT-ACC-002

Mast Climbing Work Platform Safety

Access & Temporary Structures › Specific › Mast Climbing Work Platform Safety

Presenter		Project
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Mast climbing work platforms provide a stable, full-width working platform that travels vertically on one or more masts.
MCWPs are commonly used for bricklaying, cladding, rendering, and curtain wall installation on building facades.
Operators must be trained by the manufacturer or an approved provider before using any mast climbing platform.
The platform must be erected and dismantled by competent persons following the manufacturer's installation manual.
The base and mast foundations must be designed and installed on ground capable of supporting the imposed loads.
Tie spacing to the building must follow the manufacturer's specification — ties resist wind forces and prevent mast deflection.
The safe working load of the platform includes the weight of workers, materials, and equipment — overloading is prohibited.
Wind speed limits are lower for MCWPs than for scaffolds due to the platform's exposure and the climbing mechanism.
A thorough examination by a competent person is required before first use and at intervals not exceeding six months.
Daily pre-use checks must cover the drive mechanism, safety devices, platform condition, ties, and mast alignment.

Fall prevention	MCWPs provide a full guardrail-protected platform, eliminating the leading-edge exposure that scaffolding often creates during erection.
Overloading	MCWPs have strict load limits — exceeding them causes drive failure, structural damage, or platform collapse at height.
Wind sensitivity	MCWPs are more exposed to wind than traditional scaffolds — lower wind speed limits must be observed strictly.

Don't

Complete manufacturer-approved training before operating any mast climbing platform.
Ensure the MCWP is erected by competent persons following the installation manual.
Check the base foundations and ground capacity before erection begins.
Maintain tie spacing exactly as specified by the manufacturer — do not remove ties.
Observe the safe working load limit and do not overload the platform with materials.
Stop work and lower the platform when wind speeds exceed the manufacturer's limit.
Verify the thorough examination certificate is current before using the MCWP.
Complete the daily pre-use inspection of drives, safety devices, and platform condition.
Use the platform controls smoothly and stop immediately if any fault is detected.
Report any unusual noises, vibrations, or control problems to the supervisor.

DON'T operate a MCWP without completing the required manufacturer-approved training.
DON'T allow unqualified persons to erect, modify, or dismantle the platform system.
DON'T set up the MCWP on ground that has not been assessed for load-bearing capacity.
DON'T remove ties to the building — they prevent mast deflection and wind-induced failure.
DON'T exceed the safe working load — count workers, materials, and equipment together.
DON'T continue working at height when wind speeds are above the platform's rated limit.
DON'T use a MCWP without a current thorough examination certificate on site.
DON'T skip the daily pre-use check — drive and safety device failures cause falls.
DON'T override safety limit switches or drive interlocks under any circumstances.
DON'T lean over the guardrails or stand on the edge of the platform for extra reach.

See also: Temporary Access Safety Awareness | Scaffold Safety Awareness

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