Using the Greenlee 843A is straightforward. First, select the appropriate bender head (aluminum or iron alloy) based on your preference. When bending, use the Site - Rite sighting system to quickly and accurately achieve the desired angle. Make sure to place your foot on the larger foot area of the power pedal for better control. As for maintenance, keep the bender heads clean. Regularly check the square hook design for any signs of wear. If you notice any issues, refer to the Greenlee Lifetime Limited Warranty. Store it in a dry place to prevent rust and damage.