Device (100) for starting up a granulating device, in particular one downstream of an extruder, comprising: a granulating device, such as a dry granulating device, for granulating a strand of material; a conveying line (102) coupled to the granulating device for granules, wherein the conveying line (102) leads from the granulating device in a conveying direction to a classifying device for classifying the granules; and a diverter (104, 200) arranged in the conveying line (102) for diverting the granules from a
feed line (106) into one of at least two
discharge lines (108, 110), wherein the diverter (104, 200) comprises: - a housing (112, 208) with a feed opening (114, 206), at least one first
discharge opening (116) and at least one second
discharge opening (118); and - a flap (120, 214) which is pivotable in the housing (112, 208) about a pivot axis (122) between a first conveying position in which a first conveying passage (124, 218) between the feed opening (114, 206) and the first discharge opening (116) is released while closing off a second conveying passage (126, 220) between the feed opening (114) and the second discharge opening (118), and a second conveying position in which the second conveying passage (126, 220) between the feed opening (114) and the second discharge opening (118) is released while closing off the first conveying passage (124, 218) between the feed opening (114) and the first discharge opening (116), wherein the diverter (104, 200) is designed to divert start-up material, such as granulate material, during a start-up process of the granulating device and wherein at least one guide section (142, 202), such as a guide element and / or deflector plate, is provided in the area of ​​the feed opening (114, 206) to guide the granulate over an edge and / or end face (144, 212) of the flap (120, 214).