Yes. The National Electrical Code requires generators to be grounded to an approved earth ground. Correct grounding for the generator is necessary for optimum engine performance and reduces the risk of electric shock. Use the ground terminal to properly ground the generator. Before using the ground terminal, consult a qualified electrician, electrical inspector, or local authority with jurisdiction for local codes or ordinances that apply for the intended use of your generator.
We cannot provide specific instructions for grounding, due to differing grounding practices and requirements in various jurisdictions. Head to www.osha.gov for more information on portable generator grounding safety requirements.