Using the Condux 08020600 wood test mandrel is simple. Just pull it through the duct to check if the joints are intact and if the duct is round. When handling, make sure the pulling force doesn't exceed its 2,240 lbs. (9,964 N) load capacity. After each use, clean the mandrel to keep it in good condition. Store it in a dry place to prevent the wood from warping. And always check the steel end caps and pulling eyes for any signs of damage before each use.
