The Greenlee 658 is a top - notch cable pulling sheave. Here are its key specifications: It features a 12 - foot tray - type sheave. The standout features include a sturdy steel frame that can be easily attached to cable trays with a maximum thickness of up to 2 inches (50.8 mm). This helps in smoothly rolling and guiding cable tray pulls. The 5 - inch (127 mm) wide aluminum alloy sheaves come with self - lubricating bearings, which enhance durability and performance during cable pulling operations.

Using the Greenlee 658 cable pulling sheave is quite straightforward. First, find a cable tray that's up to 2 inches thick. Attach the steel frame of the sheave to the cable tray securely. Then, you can start using it to guide and roll the cables during the pulling process. When using, make sure the cables are properly placed on the 5 - inch wide aluminum alloy sheaves. As for maintenance, since the sheaves have self - lubricating bearings, you don't need to do much lubrication. But regularly check the steel frame for any signs of wear or damage. If you notice any issues, it's best to replace or repair the parts as soon as possible. Store the sheave in a dry place when not in use to prevent rust and corrosion.