Craftsman Weedwacker Gas Trimmer Manual. Craftsman has several gas trimmers under the Weedwacker brand. View or print the Craftsman Weedwacker Gas Trimmer Manual below for troubleshooting steps or to find parts for your weedwacker. If the model listed is not the correct gas trimmer, we have dozens of others, including many of the Sears Craftsman trimmer models. These weedwackers were sold by Sears under the Craftsman brand. They use the term weedwacker because the term Weedeater is actually a brand name.