TSSA Elevating Devices Mechanic – Class F (EDM-F) License Practice Exam

The maximum allowable bottom car runby for a personnel hoist is specified as 600 mm. This limit is established to ensure safety and operational integrity in elevating systems.

Runby refers to the distance that a hoist car can travel past its landing before coming to rest. If the runby is excessively large, it can pose safety hazards by increasing the risk of over-travel, which can lead to damage to the hoist system or injury to personnel entering or exiting the car. Therefore, establishing a maximum limit helps to maintain safe operation and ensures that the hoist functions within a design framework that minimizes potential risks.

Understanding this regulation not only helps in compliance but also informs maintenance schedules and operational checks to ensure that hoists are functioning correctly within the defined parameters.