Greenlee 39257 4 Flexible Mandrel

The Greenlee 39257 is a remarkable flexible mandrel designed for efficient duct cleaning. Before you install cables, it's incredibly useful for removing mud, dirt, and minor obstacles from ducts. Thanks to the convex contacts between its disks, this mandrel can easily navigate around tight bends. Its tapered design allows you to pull it in either direction, and it has pulling eyes on both ends for added convenience. The polyurethane disks are a great feature as they won't damage the inner walls of the duct. Specifications include a duct size of 4' (102 mm), a maximum disk size of 3.75' (95.3 mm), a maximum rated capacity of 2330 lbs. (10.3 kN), and a weight of 4.5 lbs. (2.04 kg).

Using the Greenlee 39257 is quite simple. First, before installing any cables, insert the mandrel into the duct to clean out mud, dirt, and light obstacles. Because of its flexible design with convex - contact disks, it can easily go around tight bends. You can pull it in either direction as it has a tapered profile and pulling eyes on both ends. When using it, make sure not to exceed its maximum rated capacity of 2330 lbs. (10.3 kN). As for maintenance, after each use, clean the mandrel to remove any dirt or debris. Check the polyurethane disks for any signs of wear. If they are damaged, it's best to replace them to ensure the mandrel continues to work well and doesn't damage the duct's inner walls.