Using the Blue Diamond® Tree Puller is easy. First, position the puller around the base of the small tree or shrub you want to remove. Make sure the serrated teeth lock firmly onto the tree. Then, use your equipment to pry or pull the tree out from the ground. After that, shake the roots to get rid of the dirt. You can then carry the removed plant to where you want to stack it. When it comes to the heavy - duty version, its extra rows of teeth give you better grip, so you can handle tougher jobs. As for maintenance, keep the puller clean after each use. Check the pins and bushings at the pivot points regularly for any signs of wear. If there are any issues, replace them promptly. Also, make sure the hoses and couplers are in good condition. And remember, this product comes with a 1 - year warranty, so if you have any problems during this period, you can get support.