Introduction
Setting up an aluminium mobile scaffold correctly involves careful planning, precise measurements, and attention to detail to ensure safety and functionality. Properly configuring the spacing for various components like platforms, braces, wheels, and guardrails is crucial for maintaining scaffold stability and compliance with regulations. This step-by-step guide outlines the entire process for correctly setting the spacing for your aluminium mobile scaffold, helping you achieve a secure and efficient setup for any project.
Step 1: Preparing the Scaffold Base and Measuring Initial Spacing
Begin by preparing the ground surface where the aluminium mobile scaffold will be erected. The base must be on solid, level ground to ensure stability. Place the scaffold frame on the surface and start by attaching the caster wheels at each corner of the scaffold base. Ensure that each caster wheel is aligned with the vertical frame legs. The wheels should be equidistant from the centre of the scaffold to distribute the weight evenly. Lock the caster brakes to prevent movement during assembly. If the scaffold height exceeds 2 meters, consider adding base extensions to widen the wheel spacing and enhance stability. After securing the base, measure the distance between the caster wheels to verify they are spaced evenly according to the scaffold’s specifications.
Step 2: Setting Vertical Spacing for Platforms
Once the base is stable, the next step is to determine the vertical spacing for the platforms. Measure the desired height for the first platform based on the required working height. For most applications, the initial platform height should not exceed 2 meters without additional fall protection. Secure the first platform by locking it into the scaffold frame, ensuring it is level and properly seated. When additional platforms are needed, space them vertically between 1. 5 meters and 2 meters apart. This spacing allows workers to move comfortably and ensures structural stability. Use a measuring tape to confirm consistent intervals between each platform. Install each platform securely before proceeding to the next level.
Step 3: Configuring Horizontal Braces for Stability
Horizontal braces are essential for maintaining the scaffold’s rigidity. To set the horizontal brace spacing correctly, start by attaching the first brace near the base of the scaffold frame. This initial brace helps lock the frame together and provides lateral support. Measure a vertical interval of 1. 5 meters to 2 meters and attach the next horizontal brace. Continue this process until you reach the top of the scaffold. Ensure that each brace is level and securely fastened to the frame. Consistent spacing between horizontal braces is crucial for preventing the scaffold from swaying or shifting. Tighten all connections to ensure a firm hold.
Step 4: Installing Diagonal Braces for Cross-Support
Diagonal braces provide additional stability by preventing the scaffold from tilting. Begin by installing the first diagonal brace at the base of the scaffold. Attach one end of the brace to the bottom corner of the frame and the other end to the opposite top corner. Diagonal braces should be spaced vertically every 1. 5 meters for optimal support. Continue adding diagonal braces in a crisscross pattern as you move up the scaffold. This configuration distributes the load evenly and reinforces the entire structure. Ensure each diagonal brace is tightly secured to prevent movement.
Step 5: Setting Guardrail Spacing for Safety
Guardrails are required for platforms that are higher than 2 meters to protect workers from falls. To set guardrail spacing correctly, begin by installing the top rail at a height of 900 mm to 1100 mm above the platform. Measure the height carefully and attach the top rail securely to the scaffold frame. Next, install the mid-rail halfway between the top rail and the platform, ensuring even spacing. Toe boards must be placed along the edge of the platform to prevent tools or materials from falling. Check that all guardrails are securely fastened and that there are no gaps larger than 250 mm between rails.
Step 6: Positioning Access Ladders or Stairs
Safe access to platforms is critical when setting up an aluminium mobile scaffold. Begin by positioning the ladder at an angle of 75 degrees to ensure safe climbing. Measure the distance between the ladder rungs, ensuring they are spaced no more than 300 mm apart.
Step 7: Configuring Deck Spacing on the Platform
Deck spacing affects the usability and safety of the working platform. Lay the decks or planks tightly together to minimize gaps. Ensure that any gaps between the decks do not exceed 25 mm to prevent tripping hazards. Secure each deck to the scaffold frame using clips or locks to prevent movement. Check that the decks form a level and stable surface before use. Walk across the platform to verify stability and make any necessary adjustments.
Step 8: Balancing Load Distribution and Spacing
Proper load distribution helps maintain the stability of the scaffold. When placing tools, materials, or equipment on the platform, ensure that the weight is evenly distributed. Avoid concentrating heavy loads in one area, as this can cause imbalance. Spread the load across the platform and check the weight capacity specified by the scaffold manufacturer. If the load exceeds the recommended capacity, adjust the spacing or reduce the weight accordingly.
Step 9: Final Inspection and Adjustments
After setting the spacing for all components, conduct a thorough inspection of the entire scaffold. Check each platform, brace, guardrail, ladder, and deck to ensure they are securely fastened and evenly spaced. Verify that the caster wheels are locked and the base is stable. Ensure the scaffold complies with AS/NZS 1576 standards and other applicable regulations.
Conclusion
Setting the correct spacing for an aluminium mobile scaffold is a detailed process that requires precision and adherence to safety standards. By following these steps of GW equip for configuring the base, platforms, braces, guardrails, and access points, you can ensure a secure and compliant scaffold setup.
