| Models | 7850 |
|---|---|
| Years Produced | (2008-2012) |
| Engine | |
| Make | QSX15 |
| Displacement- cu in(L) | 15L (915 cu in) |
| Configuration | |
| Power @ 1900 RPM- EVE-R 120HP | 507kW (680 hp) max engine power |
| Power @ 2100 RPM- EVE- R 120 HP | 33 kW (44 hp) |
| Cooling fan drive | |
| Fuel tank capacity- gallons (L) | |
| Feeding System | |
| Number of feedrolls | 4 |
| Width of housing- in(mm) | 780 mm (30.7 in) |
| Width of feedroll- in(mm) | |
| IntelliGuard Metal Detector | Standard |
| Length of cut system- standard | 6mm-26-mm |
| Length of cut, 40-knife cutterhead40 knives.............. | 6 mm - 26 mm(0.24 in. - 1.02 in.)1 mm (0.04 in.) steps |
| 30 knives.............. | 9 mm - 34 mm(0.35 in. - 1.33 in.) |
| 20 knives.............. | 12 mm - 52 mm(0.47 in. - 2.05 in.) |
| Length of cut, 48-knife cutterhead48 knives.............. | 5 mm - 22 mm(0.19 in. - 0.87 in.)1 mm (0.04 in.) steps |
| 36 knives.............. | 7 mm - 33 mm(0.27 in. - 1.29 in.) |
| Cutterhead | |
| Chamber width 7750 - 7850.............. | 830 mm (32.7 in.) |
| Diameter 7250 - 7850.............. | 610 mm (24 in.) |
| Speed 7750 - 7850.............. | 1100/1200 rpm |
| Number of knives (40-knife cutterhead).............. | 4 x 10; 4 x 5 |
| Number of knives (48-knife cutterhead).............. | 4 x 12; 4 x 6 |
| Straight.............. | for grass |
| Curved, wide.............. | for corn |
| Angled (7250 - 7550 only).............. | for corn |
| Knife sharpening in reverse rotation.............. | standard |
| Automatically controlled.............. | standard |
| Drive.............. | hydraulic motor |
| Speed.............. | 350 rpm |
| Knife Sharpening | |
| Reverse rotation | |
| Automatic from cab | |
| Kernel Processing | |
| Roll diameter 7750 - 7850.............. | 240 mm (9.45 in.) |
| Upper.............. | 3233 rpm |
| Lower.............. | 2666 rpm |
| Roll speed 7750 - 7850 | |
| Upper.............. | 2878 rpm |
| Lower.............. | 2370 rpm |
| Roll spacing 7750 - 7850.............. | 1 to 10 mm (0.04 to 0.39 in.) |
| Roll spacing adjustable from the cab.............. | standard |
| Roll drive.............. | via belts from blower |
| Weight 7750 - 7850.............. | 400 kg (881 lb) |
| Blower | |
| Rotor diameter 7750 - 7850.............. | 560 mm (22 in.) |
| Blower channel width 7750 - 7850.............. | 632 mm (24.9 in.) |
| Speed 7250 - 7850.............. | 1800/2000/2270 rpm |
| Number of paddles 7750 - 7850.............. | 20 |
| Wear plate.............. | 8 mm (0.31 in.) Hardox |
| Spout | |
| Rotation.............. | 200° |
| Hydraulic swing.............. | standard |
| Double cap (electrically controlled).............. | standard |
| Spout extension.............. | Attachment |
| Automatic spout positioning.............. | optional |
| AMS Solution | |
| HarvestMon | Optional |
| HarvestDoc | Optional |
| HarvestLab | Optional |
| AutoTrac | Optional |
| Crop Harvesting Units | |
| Grass Pickups ft(m) | 14.8,13.1,9.8(4.5,4,3) |
| Kemper Rotary Header, Rows | 10,8 |
| Automatic steering for corn | Optional |
| Advanced Header Control | Optional |
| Feed Rolls | |
| Number of feed rolls.............. | 4 |
| Width of feeding chamber 7250 - 7550..............Width of feeding chamber 7750 - 7850.............. | 660 mm (26 in.)780 mm (30.7 in.) |
| Metal detector.............. | standard |
| Harvesting unit drive.............. | 2 speeds |
| Length of cut, 40-knife cutterhead40 knives.............. | 6 mm - 26 mm(0.24 in. - 1.02 in.)1 mm (0.04 in.) steps |
| 30 knives.............. | 9 mm - 34 mm(0.35 in. - 1.33 in.) |
| 20 knives.............. | 12 mm - 52 mm(0.47 in. - 2.05 in.) |
| Length of cut, 48-knife cutterhead48 knives.............. | 5 mm - 22 mm(0.19 in. - 0.87 in.)1 mm (0.04 in.) steps |
| 36 knives.............. | 7 mm - 33 mm(0.27 in. - 1.29 in.) |
| 24 knives.............. | 10 mm - 44 mm(0.39 in. - 1.73 in.) |
| Stationary Knife | |
| Stationary knife adjustment from the cab.............. | standard |
| Hard-faced.............. | preferably for grass |
| Tungsten-carbide faced, at cutting edges.............. | preferably for corn |
| Tungsten-carbide faced, at cutting edges and at the top.............. | for corn |
| Chamber width 7250 - 7550..............Chamber width 7750 - 7850.............. | 710 mm (28 in.)830 mm (32.7 in.) |
| Diameter 7250 - 7850.............. | 610 mm (24 in.) |
| Speed 7250 - 7450.............. | 1000 / 1150 rpm |
| Speed 7550.............. | 1150 rpm |
| Speed 7750 - 7850.............. | 1100/1200 rpm |
| Number of knives (40-knife cutterhead).............. | 4 x 10; 4 x 5 |
| Number of knives (48-knife cutterhead).............. | 4 x 12; 4 x 6 |
| Knives | |
| Straight.............. | for grass |
| Curved, wide.............. | for corn |
| Angled (7250 - 7550 only).............. | for corn |
| Knife sharpening in reverse rotation.............. | standard |
| Automatically controlled.............. | standard |
| Drive.............. | hydraulic motor |
| Speed.............. | 350 rpm |
| Recirculating Screens | |
| -: Recirculating Screen Specifications | |
| Slot widths.............. | 13 mm, 16 mm, 19 mm, 35 mm, 44 mm(0.5 in., 0.6 in., 0.7 in., 1.4 in., 1.7 in.) |
| Kernel Processor (Optional) | |
| -: Kernel Processor Specifications | |
| Roll diameter 7250 - 7550..............Roll diameter 7750 - 7850.............. | 216 mm (8.5 in.)240 mm (9.45 in.) |
| Roll speed 7250 - 7550 | |
| Upper.............. | 3233 rpm |
| Lower.............. | 2666 rpm |
| Roll speed 7750 - 7850 | |
| Upper.............. | 2878 rpm |
| Lower.............. | 2370 rpm |
| Roll spacing 7250 - 7550.............. | 1 to 20 mm (0.04 to 0.78 in.) |
| Roll spacing 7750 - 7850.............. | 1 to 10 mm (0.04 to 0.39 in.) |
| Roll spacing adjustable from the cab.............. | standard |
| Roll drive.............. | via belts from blower |
| Weight 7250 - 7550..............Weight 7750 - 7850.............. | 350 kg (772 lb)400 kg (881 lb) |
| Hydraulic System—ProDrive Transmission | |
| -: Hydraulic System Specifications | |
| Type.............. | open center |
| Pump.............. | fixed displacement, gear type |
| Relief pressure.............. | 21000 kPa (210 bar; 3045 psi) at 25 L/min (6.6 U.S. gpm) |
| Flow rate | |
| Header.............. | 53 L/min (14 U.S. gpm) |
| Hydraulic functions (spout etc.).............. | 36 L/min (9.5 U.S. gpm) |
| Steering.............. | 18 L/min (4.8 U.S. gpm) |
| Transmission.............. | 36 L/min (9.5 U.S. gpm) |
| IVLOC.............. | 26 L/min (6.9 U.S. gpm) |
| Electrical System | |
| -: Electrical System Specifications | |
| Type.............. | 12 V, one 150 A alternator |
| Brakes—3-Speed Transmission | |
| -: Brake Specifications | |
| Type.............. | 305 mm (12 in.), hydraulically operated shoe-type, two brake circuits |
| Brakes—ProDrive Transmission | |
| -: Brake Specifications | |
| Type.............. | electro-hydraulically operated disk-type, two redundant brake circuits |
| Ground Speed Drive | |
| -: Ground Speed Drive Specifications | |
| Type.............. | hydrostatic |
| Transmission | |
| -: Transmission Specifications | |
| Type.............. | three-speed transmissiontwo-speed transmission (ProDrive) |
| Max. Ground Travel Speeds—3-Speed Transmission | |
| -: Max. Ground Speed Specifications | |
| 20 km/h (12 mph) version.............. | 6.9 km/h (4.3 mph) in 1st gear (2100 rpm)13 km/h (8 mph) in 2nd gear (2100 rpm)20 km/h (12.5 mph) in 3rd gear (1650 rpm) |
| 25 km/h (15 mph) version.............. | 8.6 km/h (5.3 mph) in 1st gear (2100 rpm)19.6 km/h (12.2 mph) in 2nd gear (2100 rpm)25 km/h (15.5 mph) in 3rd gear (1650 rpm) |
| Max. Ground Travel Speeds—ProDrive Transmission | |
| -: Max. Ground Speed Specifications | |
| 40 km/h (25 mph) version.............. | 20 km/h (12.5 mph) in field mode (2100 rpm)40 km/h (24.8 mph) in road mode (1650 rpm) |
| Rear Axle | |
| -: Rear Axle Specifications | |
| Heavy Duty (wide).............. | 7250 - 7850 |
| Rear wheel drive (narrow).............. | 7250 - 7850 |
| Rear wheel drive (wide).............. | 7250 - 7850 |
| Rear wheel drive (wide)—ProDrive.............. | 7350 - 7850 |
| Capacities | |
| -: Capacity Specifications | |
| Fuel tank: | |
| 7250.............. | 700 L (185 U.S. gal) standard1100 L (290 U.S. gal) optional |
| 7350.............. | 700 L (185 U.S. gal) standard1100 L (290 U.S. gal) optional |
| 7450.............. | 1100 L (290 U.S. gal) standard |
| 7550.............. | 1100 L (290 U.S. gal) standard |
| 7750.............. | 1100 L (290 U.S. gal) standard |
| 7850.............. | 1100 L (290 U.S. gal) standard |
| Cooling system (complete): | |
| 7250.............. | 48 L (12.7 U.S. gal) |
| 7350.............. | 60 L (15.9 U.S. gal) |
| 7450, 7550, 7750.............. | 71 L (18.7 U.S. gal) |
| 7850.............. | 98 L (25.8 U.S. gal) |
| Engine (with filter): | |
| 7250.............. | 28 L (7.39 U.S. gal) |
| 7350, 7450, 7550, 7750.............. | 60 L (18.85 U.S. gal) |
| 7850.............. | 45 L (11.9 U.S. gal) |
| 3-Speed Transmission.............. | 7 L (1.85 U.S. gal) |
| ProDrive transmission.............. | 13 L (3.43 U.S. gal) |
| Final drives (each).............. | 8.5 L (2.24 U.S. gal) |
| Rear wheel drive rear axle | |
| Differential - narrow axle.............. | 15 L (3.69 U.S. gal) |
| Differential - wide axle.............. | 19.5 L (5.15 U.S. gal) |
| Reduction gear.............. | 0.7 L (0.19 U.S. gal) |
| Hydraulic system: | |
| Complete system—3-Speed Transmission.............. | 90 L (23.8 U.S. gal) |
| Complete system—ProDrive Transmission.............. | 97 L (25.6 U.S. gal) |
| Hydraulic tank.............. | 44.5 L (11.8 U.S. gal) |
| IVLOC.............. | 19 L (5.01 U.S. gal) |
| Brake system—3-Speed Transmission: | |
| Brake fluid.............. | 1 L (0.26 U.S. gal) |
| AC system: | |
| Refrigerant.............. | 2350 g (82.9 oz.) |
| Operator's Cab | |
| -: Operator's Cab Specifications | |
| Air conditioning system.............. | standard |
| Heater.............. | standard |
| Passenger seat.............. | standard |
| Weight (Approx.) | |
| -: Weight (Approx.) Specifications | |
| With 3-Speed Transmission, four-wheel drive and kernel processor, without harvesting unit and rear weights, fuel tank 3/4 filled, without operator: | |
| 7250.............. | 9755 kg (21 506 lb) with front tires 620/75 R 34 and rear tires 480/80 R 26 |
| 7350, 7450.............. | 11 280 kg (24 868 lb) with front tires 800/65 R 32 and rear tires 540/65 R 26 |
| 7550.............. | 11 580 kg (25 529 lb) with front tires 800/65 R 32 and rear tires 540/65 R 26 |
| 7750.............. | 12 680 kg (27 954 lb) with front tires 800/65 R 32 and rear tires 540/65 R 26 |
| 7850.............. | 12 960 kg (28 616 lb) with front tires 800/65 R 32 and rear tires 540/65 R 26 |