A:Answer Hi Plebian. Thank you for your question. Please ensure to check the back of the unit, the part is usually installed when the item is shipped. If you find you are still missing the part, please contact Greenworks directly. We can be reached through the chat on www.greenworkstools.com which will direct you to a live agent or call us at 1-888-909-6757 (1-888-90WORKS) to speak with a live agent. We hope this helped!