John Deere

John Deere 8520T

The John Deere 8520T is an agricultural crawler tractor produced from 2002 to 2005 as part of the 8020 Series. It features a John Deere 8.1L 6-cylinder turbocharged diesel engine delivering up to 335 hp gross power. The tractor uses a 16-speed full power shift John Deere PowerShift transmission and has electro-hydraulic power steering with hydraulic wet disc brakes. It is built in Waterloo, Iowa, USA. The 8520T has a fuel capacity of 130 gallons and a hydraulic system capacity of 65 gallons. It rides on 24-inch wide tracks with various track width options and has a wheelbase of 89 inches (120 inches wide track option). The tractor weighs between 25,950 and 27,280 pounds operating weight, with ballasted weight up to 30,895 pounds. It includes a standard cab and an independent rear PTO rated at 1000 rpm. The 8520T is a crawler variant of the 8520 wheeled tractor.

Power305 hp

Founded2002 - 2005

Model8520T

View Images

Technical Specifications

Detailed specifications and technical data for John Deere 8520T

Power

Engine (max)	335 hp (249.8 kW)
Engine (net)	295 hp (220.0 kW)
PTO (tested)	291.67 hp (217.5 kW)
PTO (claimed)	255 hp (190.2 kW)
Engine (gross)	305 hp (227.4 kW)
Drawbar (tested)	219.23 hp (163.5 kW)

Engine

Type	turbocharged diesel
Cooling	liquid-cooled inline
Idle RPM	900-2300
Cylinders	6-cylinder
Rated RPM	2200
Bore/Stroke	4.56x5.06 inches (116 x 129 mm)
Compression	16.5:1
Displacement	496 ci (8.1 L)
Manufacturer	John Deere
Oil capacity	22.7 qts (21.5 L)
Operating RPM	1500-2200
Starter volts	12
Coolant capacity	35.9 qts (34.0 L)
Rated Power (net)	295 hp (220.0 kW)
Maximum Power (net)	325 hp (242.4 kW)
Oil change interval	250 h
Rated Power (gross)	305 hp (227.4 kW)
Maximum Power (gross)	335 hp (249.8 kW)

Tracks

16-inch width	16 inches (40 cm)
18-inch width	18 inches (45 cm)
24-inch width	24 inches (60 cm)
30-inch width	30 inches (76 cm)
16-inch area on ground	2848 in² (1.8 m²)
18-inch area on ground	3204 in² (2.1 m²)
24-inch area on ground	4272 in² (2.8 m²)
30-inch area on ground	5340 in² (3.4 m²)
16-inch length on ground	89 inches (226 cm)
18-inch length on ground	89 inches (226 cm)
24-inch length on ground	89 inches (226 cm)
30-inch length on ground	89 inches (226 cm)

Weight

Shipping	25,950 lbs (11770 kg)
Ballasted	30,895 lbs (14013 kg)
Operating	27,280 lbs (12374 kg)
Max capacity	31,500 lbs (14288 kg)

Capacity

Fuel	130 gal (492.1 L)
Hydraulic system	65 gal (246.0 L)

Variants

8520	wheeled tractor
8520T	crawler

Electrical

Ground	negative
Batteries	2
Battery CCA	925
Battery volts	12
Charging amps	150
Charging system	alternator

Hydraulics

Type	closed center pressure flow compensated (PFC)
Valves	5
Capacity	65 gal (246.0 L)
Pressure	2900 psi (200.0 bar)
Pump flow	30 gpm (113.6 lpm)
Total flow	33.5 gpm (126.8 lpm)
Optional flow	42.5 gpm (160.9 lpm)

Mechanical

Cab	standard
Drive	crawler
Brakes	Hydraulic wet disc brakes
Steering	electro-hydraulic power

Production

Type	Agricultural Crawler tractor
Series	8020 Series
Built in	Waterloo, Iowa, USA
Years produced	2002 - 2005

Transmission

Type	John Deere PowerShift
Gears	16 forward and 4 reverse
Notes	Fourth reverse at 1600 RPM.
Shift	full power shift
Oil capacity	260 qts (246.1 L)

Tractor hitch

Rear Type	III/IIIN
Rear lift capacity	15,180 lbs (6885 kg)

Dimensions & Tracks

Length	207 inches (525 cm)
Wheelbase	89 inches (226 cm)
Width (max)	150 inches (381 cm)
Width (min)	103.7 inches (263 cm)
Height (cab)	122.9 inches (312 cm)
Clearance (drawbar)	17.7 inches (44 cm)
Wide track wheelbase	120 inches (304 cm)
Clearance (rear axle)	21.7 inches (55 cm)
Length with front weights	219.6 inches (557 cm)