When positioning the riser, what is the main consideration for installation?

The main consideration for installing a riser is primarily focused on car clearance. Ensuring proper clearance for the elevator car is crucial because it affects the safe and efficient operation of the elevator system. If the riser is not positioned correctly with adequate clearance, it can lead to operational issues, such as the car becoming stuck or unable to travel between floors. The positioning must account for the vertical travel paths of both the elevator car and any associated components, such as guides and cables, to prevent obstructions and ensure smooth operation.

While weight distribution, structural integrity, and access for maintenance are also important factors in the overall installation process, the primary concern during the riser positioning phase revolves around ensuring that the elevator car has the necessary clearance to operate safely and effectively within the hoistway. This focus on car clearance addresses potential conflicts and maintains the elevator's reliability.