Diesel Quad-Range 4WD May 11 - 21, 1982 Link: Nebraska Tractor Test 1434 file PTO performance Drawbar performance
Power at rated engine speed
303.99hp / 226.7kW
Fuel use
19.2gal/hour / 72.7l/hour
Max power
269.77hp / 201.2kW
Max pull
35,330lbs / 16025kg
JOHN DEERE 8850 POWER
Engine
370hp / 275.9kW
PTO (claimed)
300hp / 223.7kW
Drawbar (tested)
269.77hp / 201.2kW
PTO (tested)
303.99hp / 226.7kW
ENGINE DETAIL
Description
John Deere intercooled turbocharged diesel 8-cylinder liquid-cooled V8
Displacement
955ci / 15.7L
Bore/Stroke
5.51x5.00inches / 140x 127mm
Power
370hp / 275.9kW
Compression
15.5:1
Rated RPM
2100
Starter volts
12
Oil capacity
51qts / 48.3L
Coolant capacity
78qts / 73.8L
JOHN DEERE 8850 ENGINE
Description
John Deere 15.7L 8-cyl diesel
TRANSMISSION
Transmission
Quad-Range
Type
partial power shift
Gears
16 forward and 6 reverse
Clutch
Perma-Clutch hydraulic wet discs
Oil capacity
182qts / 172.2L
Description
Tractor must be stopped to select one of four ranges. Clutchless power shift between speeds 1-2 and 3-4 in range. A synchronized shift (using clutch) can be made between 2 and 3 in range
SPEEDS
Description
20.8-38 tires
MECHANICAL
Chassis
4x4 articulated 4WD
Final drives
inboard compound planetary
Differential lock
electro-hydraulic front and rear
Steering
articulated power
Brakes
power wet disc
Cab
Sound-Gard cab with air-conditioning
Transmission
16-speed partial power shift
CAPACITY
Fuel
240gal / 908.4L
Hydraulic system
45.5gal / 172.2L
HYDRAULICS
Type
closed center constant-pressure
Capacity
45.5gal / 172.2L
Valves
3 to 4
Pump flow
44gpm / 166.5lpm
TRACTOR HITCH
Rear Type
4/4N
Control
lower-link draft sensing
Rear lift
10,250lbs / 4649kg
POWER TAKE-OFF (PTO)
Rear PTO
independent
Clutch
hydraulic wet disc
Rear RPM
1000 (1.75)
JOHN DEERE 8850 TIRES
Ag front
20.8-42
Ag rear
20.8-42 23.1-34 24.5-32 30.5L-32 20.8-42
DIMENSIONS
Wheelbase
133inches / 337cm
Length
257.8inches / 654cm
Shipping weight
37,480lbs / 17000kg
Operating weight
37,700lbs / 17100kg
Front axle
4.331 by 127.5inches / 110by 3238mm
Rear axle
4.331 by 127.5inches / 110by 3238mm
DIMENSIONS & TIRES
Wheelbase
133inches / 337cm
Weight
37480 to 37700 pounds
Front tire
20.8-38
Rear tire
20.8-38
BLADE
Type
front-mount John Deere 866
Width
168inches / 426cm
Height
38inches / 96cm
Lift height
20inches / 50cm
Angle
18°
Cut depth
6 inches /15 cm
Lift type
hydraulic
Angle type
hydraulic
8850 SERIAL NUMBERS
Location
Serial number plate on the rear of the tractor
1982
2000
1983
4000
1984
5101
1985
6001
1986
6501
1987
7001
1988
7501
ELECTRICAL
Ground
negative
Charging system
alternator
Charging amps
110
Batteries
3
Battery CCA
625
Battery volts
12
About John Deere Tractor
The 8850 tractor is part of the John Deere's 8050 Series. The 8850 is a Four-wheel Drive 4WD Tractors type, that is used mostly in Agriculture Tractors. A engine runs the 8850 tractor. This arrangement boosts real-world effectiveness.