Specifications, Service and Repair of Farm and Lawn Tractors

________________________________________________________________________________

John Deere 7820 Technical Data

John Deere 7820 Engine

Engine Model ................. John Deere 6068T 4V-CR
Engine Type ................. 4-Cycle, 6-cylinder turbocharged diesel
Number of Cylinders ................. 6, In-line
Displacement, cu in (L) ................. 414.4 (6.786)
Engine Bore, in (mm) ................. 4.19 (106.0)
Engine Stroke, in (mm) ................. 5.00 (127.0)
Aspiration ................. Turbocharged
Rated Engine Power, hp (kW) ................. 192.0 (143.2)
Rated Engine Speed, rpm ................. 2100
Idle Speed Range, rpm ................. 875-2200
Maximum Torque, Nm (ft-lbs) ................. 903 (667)
Torque Speed, rpm ................. 1400
Compression ................. 16.5:1
Firing Order ................. 1-5-3-6-2-4
Fuel System ................. High-pressure common rail
Injection Pump Type ................. Rotary
Lubrication ................. Full pressure
Air Cleaner ................. Dual paper elements
Fuel Tank Capacity, gal (L) ................. 103.5 (392.0)
Oil Capacity, qts (L) ................. 27.5 (26.0)
Coolant Capacity, qts (L) ................. 31.1 (29.4)
Electrical System Rating, Volts ................. 12
Charging System ................. Alternator
Alternator Rating, Amps ................. 150

Power Take-Off

PTO Operational Type ................. Independent
PTO Horsepower, hp (kW) ................. 155.0 (115.6)
PTO Clutch ................. Hydraulic wet discs
PTO Speed, rpm ................. 540/1000
Rear PTO / Engine Speed, rpm ................. 540/1950
Rear PTO / Engine Speed, rpm ................. 1000/1950

John Deere 7820 Transmission

Transmission Type ................. PowrQuad Plus
Gearbox Type ................. 20F/20R
Number of Forward Gears ................. 20
Number of Reverse Gears ................. 20
Clutch Type ................. Wet disc
Oil Capacity, qts (L) ................. 114.5 (108.0)
Maximum Forward Speed, mph (kph) ................. 25.6 (41.1)
Maximum Reverse Speed, mph (kph) ................. 25.6 (41.1)

Transmission Type ................. AutoQuad Plus
Gearbox Type ................. 20F/20R
Number of Forward Gears ................. 20
Number of Reverse Gears ................. 20
Clutch Type ................. Wet disc
Oil Capacity, qts (L) ................. 114.5 (108.0)
Maximum Forward Speed, mph (kph) ................. 25.6 (41.1)
Maximum Reverse Speed, mph (kph) ................. 25.6 (41.1)

Transmission Type ................. AutoPowr IVT
Gearbox Type ................. Infinitely variable transmission
Number of Gears ................. Infinite forward and reverse
Maximum Forward Speed, mph (kph) ................. 25.0 (40.2)
Maximum Reverse Speed, mph (kph) ................. 25.0 (40.2)

JD 7820 Wheels and Tires

Drive Wheels ................. 4WD 4x4
Steering Configuration ................. Front Steer
Steering System ................. Hydrostatic power
Brakes Type ................. Hydraulic wet disc
Front Tire Size ................. 600/65R28
Rear Tire Size ................. 620/70R42

John Deere 7820 Hydraulics and Hitch

Hydraulic System Type ................. Closed center, pressure and flow compensated
Hydraulic Pump Type ................. Piston, variable displacement axial pump
Implement Pump Flow, gpm (Lpm) ................. 32.2 (121.9)
SCV Flow, gpm (Lpm) ................. 30.0 (113.6)
Hydraulic Pressure, bar (psi) ................. 210 (3047)
Hydraulic Fluid Capacity, gal (L) ................. 28.5 (108.0)
Number of Standard Remote Valves ................. 7
3-Point Hitch Category ................. 3/3N
Draft Sensing or Lift Control ................. Position and draft control
Standard Lift Capacity at lift pin, lb (kg) ................. 10050 (4560)
Optional Lift Capacity at lift pin, lb (kg) ................. 14000 (6350)

JD 7820 Dimensions and Weight

Wheelbase, in (mm) ................. 112.6 (2860)
Length, in (mm) ................. 212.2 (5380)
Height, in (mm) ................. 125.4 (3180)
Overall Width, in (mm) ................. 96 (2430)
Ground Clearance (Front Axle), in (mm) ................. 22 (560)
Ground Clearance (Drawbar), in (mm) ................. 16.3 (410)
Turning Radius, in (mm) ................. 208 (5260)
Weight (PowrQuad/AutoQuad), lb (kg) ................. 17310 (7850)
Weight (AutoPowr IVT), lb (kg) ................. 17750 (8050)

________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

JOHN DEERE TRACTORS SPECIFICATIONS

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

JOHN DEERE TRACTORS ATTACHMENTS
1023E 2025R 2210 2520 3032E
3046R 3520 4066R 4105 4200
4320 4400 4520 4600 4720
430 420 455 X300 X350
X485 X500 X590 X700 X738

________________________________________________________________________________________

JOHN DEERE FRONT END LOADERS

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

JOHN DEERE TRACTORS MAINTENANCE

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

JOHN DEERE TRACTORS TROUBLESHOOTING
2640 3040 3310 3650 4100
5050D 5090R 5410 6105R 7200R
E130 L111 LA110 LT155 X300R

________________________________________________________________________________________