Toro Owners Manual - Enlarge page 1 
From inside (document excerpt):
erothatch 83 & Seeder 93 Provides relief from troublesome thatch and compaction and slit seeds all in one pass. AEROTHATCH 83, MODELS 44830 SWATH SPACING HITCH DRIVE GEARBOx BLADES BLADE SHAFT BLADE DEPTH FRAME ROLLER 48 ” (122 cm), 45 ” (114 cm) blade tip to blade tip Model 44830: 3 ” (7 6 cm) Standard 3 point hitch, Category 1 Std 13/8 ” splined Ag type drive shaft PTO to gearbox, sealed bearing and sprocket, #H80 chain to blade shaft Heavy duty 1:1 right angle reversible gearbox (16) 12 ga /10 pt (Optional: 7 ga & 10 ga /10 pt ) 1 5 ” (38 mm) square high carbon steel 0-3 ” (7 6 cm) in 1/4 ” (6 3 mm) increments All welded steel construction Full width, 3 5 ” (8 9 cm) dia roller with sealed bearings Roller is integral with the skid shoes and spring loaded wiper for full width of roller Height: 36 ” (91 cm) (with 3 pt hitch) Length: 57 ” (145 cm) Width: 60 ” (152 cm) 550 lbs (250 kg) SEEDER 93, MODEL 44835[1] DRIVE SEED HOPPER HOPPER AUGER SEED SHUT OFF SEED TUBES FEED OPENINGS DIMENSIONS SHIPPING WEIGHT OPTIONAL Ground powered 100 lbs (45 4 kg) capacity Metal cogs on a steel shaft Remote from the operator’s position Delivers seed to 16 discs Adjustable to the desired rate Height: 33 ” (84 cm) Length: 13 ” (33 cm) Width: 56 ” (142 cm) 300 lbs (136 kg) Drag Mat, 72-002-0021 *Specifications and design subject to change without notice Products depicted in this literature are for demonstration purposes only Actual products offered for sale may vary in design, required attachments and safety features Consult your local Toro Distributor [1] Must be used with 44830 Aerothatch DIMENSIONS SHIPPING WEIGHT 106