ModelCapacity (bushels) with tracksCapacity (bushels) with tiresUnload speed (bu/min)Minimum horsepowerSCVs required at 2,320 min. psi 17211,700n/a750450 HP2 15211,5001,450750370 HP2 14211,4001,350750350 HP2 13211,3001,250750300 HP2 11211,1001,100550250 HP3 10511,0501,050475210 HP3