Fire 53 was dispatched to a reported lawn tractor on fire to the rear of a residence at 4647 Ash Drive. The tractor was reported to be fully involved with no exposures. 5351 (Chief Seip) responded to the scene, confirmed the dispatch and established command. Engine 5312 responded and extinguished the fire using PW extinguishers. 17 EMS responded with one unit for the stand-by.