Where is a holdback installed for manual rope pulling?

A holdback is installed near the counterweight at the top of the hoistway for manual rope pulling in order to ensure safety and proper functioning of the elevator system. The holdback serves to secure the counterweight, preventing it from moving unintentionally when manual pulling operations are underway.

Installing it near the counterweight is critical because the counterweight provides balance to the elevator car during operation. If the counterweight were to shift or drop unexpectedly, it could result in dangerous situations, including possible injury or equipment damage. By having the holdback in this location, it allows for a secure and stable environment for maintenance personnel to perform manual operations without the risk of the counterweight affecting the system adversely.

In contrast, locations such as the machine room, the bottom of the shaft, or midway up the hoistway are not appropriate for holdbacks used in this context. These areas do not provide the necessary stability and safety mechanisms needed when performing manual operations related to the counterweight and the overall functionality of the elevator system.