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John Deere 8450-8850

85JD8650
85JD8850ohjaamo
85JD8850nopeudet
85JD8850ohjaamo2
85JD8650
85JD8850ohjaamo
85JD8850nopeudet
85JD8850ohjaamo2
Manufacturer
Models
John Deere 8450, John Deere 8650, John Deere 8850
Years
1982-89
Info

In the spring of 1982, the 50-series of chassis-controlled tractors was introduced. There were now three models: the 8450 with a 7.6 litre engine producing 225 hp, the 8650 with 10.1 litres and 290 hp, and the 8850 with a 15.6 litre V8 delivering 370 hp. All engines were turbocharged and intercooled and equipped with a viscous-drive fan. Injection pressure was higher than before, and the oil-change interval had been extended to 200 hours.

The new 8850 was noticeably larger than the smaller models and built more robustly—for example, its drive axles were 110 mm instead of 100 mm. John Deere’s own V8 engine featured a viscous fan and two intercoolers. Cab noise levels in the 50-series had been reduced to 76.5–78 dB. The monitoring system was enhanced with an Investigator II digital display.

(All speeds are in mph.)

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Technical data
ModelJohn Deere 8450John Deere 8650John Deere 8850
Manufacturer nameJohn DeereJohn DeereJohn Deere
Imported to FinlandNoNoNo
Years1982-891982-891982-89
Engine model60766101-
Cyl/Turbo/Intercooler6TI6TIV8TI
Displacement7636 cm³10144 cm³15649 cm³
Bore x stroke115,8×120,7 mm130×127 mm140×127 mm
Rated power225/2100 hp DIN/rpm290/2100 hp DIN/rpm370/2100 hp DIN/rpm
Gears16+616+616+6
Synchronized gears16+616+616+6
Powershift gears2-step2-step2-step
Speeds in km/h3,5-34,13,4-32,53,4-32,5
Lift controlsmech.mech.mech.
Lift capacity3860 kg3860 kg4540 kg
PTO speeds100010001000
Brakeswet discwet discwet disc
Steeringhydrost.hydrost.hydrost.
Turning circle m 4WD10.810.811.58
Front tyres 4WD24.5-3224.5-3220.8-38
Rear tyres 4WD24.5-3224.5-3220.8-38
Weight 4WD12500 kg13300 kg17000 kg
Length (2WD/4WD)570 cm570 cm655 cm
Wheelbase (2WD/4WD)320 cm320 cm338 cm
Fuel tank810 l810 l810 l
Cab noise level77.5 dB76.5 dB78 dB
Solid cabxxx
Air suspension seathydr.hydr.hydr.
Air conditioningxxx
Trip computerpartialpartialpartial