Masonry Magazine April 2012 Page. 30
SCAFFOLDING
provide access to one level (see Photo 4). Only erectors are allowed to climb frames that don't meet the Integral Climbing Ladder Standard 1926.451(e)(6). All Non-Stop and other elevating towers currently produced meet this standard and are legal to climb. Safe access is built in.
Struck by falling objects
YOU MUST CONTAIN falling objects. That means using toe boards, screens or barricading the area around the scaffold at ground level. Non-Stop makes an overhead protection system for falling object protection. A good rule of thumb: Never work under or over another craft.
Keep your scaffolding and forklifts at least 10 feet away from power lines, and farther if they are carrying more than 50,000 volts check with the power company.
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Electrocution
KEEP YOUR SCAFFOLDING and forklifts at least 10 feet away from power lines, and farther if they are carrying more than 50,000 volts - check with the power company. Another overlooked trouble area is extension cords. If you can see any single conductor, even if it's not bare, replace it. This occurs where the jacket separates from the plug or the receptacle, exposing black, white or green wires. This is an automatic citation.
Scaffold collapse
PLANKS MUST BE LAID PROPERLY and have the required six- to 12-inch overhang and overlap. X-braces must be in place. You must use base plates on concrete, and leveling jacks and mud sills on dirt. Beware of muddy scaffold boards. That's usually a sign it was once used for a mud sill, and you can be cited for that. It's better to use a short mud sill, or pad, that can never be used for a scaffold plank (see Photo 1). Be sure to use tags to indicate the state of the scaffold. Frame scaffolding must be tied in, when the base to height ratio exceeds 4:1. This is calculated differently for crank-up scaffolds. The 4:1 ratio is measured to the work platform, not the top of the tower. An untied tower can be higher than the 4:1, since there is no load above the platform. Consult the individual manufacturer for the maximum free-standing height.
Do it right, every time
WHEN MOVING FRAME SCAFFOLDING from one wall to the next, you must tear it down in a safe manner, and re-erect it in a safe manner, every time you move it. Missing one component can cost you. As one man said, "It's like a thousand-question test, and if you miss one, you fail."
Alternatives exist. Using tower type crank-up scaffolding, your guardrails are installed once, on the one level, and travel up and down with you. It's picked up with a forklift