John Deere 9860 STS Combine

Dimensions

Overall Length (w/o head, w/ auger) 34 ft 9 in (10650 mm)
Overall Length (w/o head, w/o auger) 24 ft 9 in (7620 mm)
Wheelbase 11 ft 6 in (3530 mm)
Front Track Width 10 ft (3050 mm)
Rear Track Width 10 ft 1 in (3090 mm)
Overall Height 14 ft 9 in (4530 mm)
Height to Top of Cab 12 ft 4 in (3770 mm)
Ground Clearance 1 ft 5 in (470 mm)
Rear Wheel Tread Width 10 ft 10 in (3300 mm)
Turning Radius (Non-Powered Axles) 25 ft 4 in (7730 mm)
Turning Radius (Powered Axles) 26 ft 9 in (8190 mm)

John Deere 9860 STS Combine Weight and Dimensions

Feeding

Conveyor Width 55 in (1397 mm)
Conveyor Length 68 in (1727 mm)
Conveyor Speed 520 rpm

Threshing

Rotor Diameter 29.6 in (750 mm)
Rotor Length 123.3 in (3130 mm)
Rotor Speed – Low 210 rpm
Rotor Speed – High 1000 rpm
Concave Area 1705 in2 (1.1 m2)

Separating

Separator Type Rotary
Separating Area 2387 in2 (1.6 m2)
Discharge Grate Area 558 in2 (0.4 m2)

Cleaning System

Total Cleaning Area 7099 in2 (4.6 m2)
Cleaning Fan Speed – Low 500 rpm
Cleaning Fan Speed – High 1200 rpm

Grain Handling

Grain Tank Capacity 300 bu (10570 L)
Unloading Auger Length 22.7 ft in (6.9 m)
Unloading Discharge Height 14.4 ft in (4.4 m)
Average Unloading rate 198 bu/min (6977 L/min)
Maximum Unloading rate 216 bu/min (7612 L/min)

Engine Details

Number of Cylinders 6
Engine Make John Deere
Engine Model John Deere 6125HH
Displacement 762.8 cu in (12.5 L)
Bore 5.0 in (127 mm)
Stroke 6.5 in (150 mm)
Net Power 375 hp (280 kw)
Power Boost Power 413 hp (308 kw)
Power Measured @ 2200 rpm
Air Cleaner Dry-type air filter with safety element
Aspiration Turbocharged, air-to-air aftercooled

John Deere 9860 STS Combine Specs

Operational Specs

Operating Weight (Corn Combine, w/o header) 33577 lb (15228 kg)
Operating Weight (Rice Combine, w/o header) 35138 lb (15936 kg)
Operating Voltage 12 V
Alternator 125 amps
Front Tire Size 800/65R32
Rear Tire Size 18.4-26 R1 (18.4-30 R2)

Transmission

Type Hydrostatic transmission
Number of Gears 3
Max Work Speed (field) 5 mph (8 km/h)
Max Travel Speed (road) 20 mph (32 km/h)
Service Brakes Hydraulic shoe brakes
Parking Brake Manual engage and disengage parking brake pedals

John Deere 9860 STS Combine Transmission Specs

Service Refill Capacities

Fuel Tank Capacity 250 gal (945 L)
Engine Oil Capacity (SN: -715600) 7.8 gal (29.5 L)
Engine Oil Capacity (SN: 715601-) 11.1 gal (42 L)
Cooling System Capacity (SN: -715600) 14.5 gal (55 L)
Cooling System Capacity (SN: 715601-) 17.9 gal (67.7 L)
Transmission Oil Capacity 2.5 gal (9.6 L)
Final Drives Fluid Capacity 2.1 gal (8 L)
Hydraulic System Capacity (SN: -715600) 9 gal (34 L)
Hydraulic System Capacity (SN: 715601-) 9.2 gal (35 L)
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