5.2.2 Support, anchoring, fixing and erecting.
1) Foundations, stages, scaffolds, derrick masts, anchorages, guys etc., which have to support lifting appliances must be strong enough for the plan under working conditions.
• Winch frames must be made of metal.
• Ropes, chains, etc. used in erection or dismantling, must be properly connected to strong attachment points.
• Crane jibs (all section) must be marked to indicate the crane to which they belong