John Deere 1830, 1835 61ft, H540F, H541, H550, H550F, H560F and H561 Air Hoe Drills Diagnostic Manual (TM168219)
John Deere 770, 775, 780, 785 Air Hoe Drills, 655 and 665 Central Metering Seeders Technical Manual (TM1306)