An increase in the rated speed or capacity of a load-carrying unit by more than 10% is considered what type of alteration?

An increase in the rated speed or capacity of a load-carrying unit by more than 10% is classified as a major alteration. This is because such a significant adjustment can substantially affect the performance, safety, and operational characteristics of the equipment. Major alterations often require thorough review, compliance with applicable safety codes, and potentially another round of inspections and certifications to ensure that the equipment continues to operate safely within the revised parameters.

The reason this type of alteration is considered major is rooted in the potential implications for user safety and the integrity of the elevating device. These adjustments can result in increased wear on components, necessitate changes in operational procedures, and possibly expose users to additional risks if not properly addressed.

In contrast, minor alterations generally involve changes that do not significantly affect the operational capabilities or safety of the unit, such as replacing non-load-bearing components or minor modifications that remain within the design specifications. This distinction is important to maintain strict adherence to safety standards and regulations in the realm of elevating devices.