Specifications, Service and Repair of Farm and Lawn Tractors

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John Deere 7800 Technical Specifications

John Deere 7800 Engine

Engine Model ................. John Deere 6076
Engine Type ................. 4-Cycle, 6-cylinder turbocharged diesel
Number of Cylinders ................. 6, In-line
Displacement, cu in (L) ................. 466 (7.636)
Engine Bore, in (mm) ................. 4.56 (116.0)
Engine Stroke, in (mm) ................. 4.75 (121.0)
Aspiration ................. Turbocharged
Rated Engine Power, hp (kW) ................. 170.0 (126.8)
Rated Engine Speed, rpm ................. 2100
Maximum Torque, Nm (ft-lbs) ................. 670 (496)
Torque Speed, rpm ................. 1220
Compression ................. 15.5:1
Firing Order ................. 1-5-3-6-2-4
Fuel System ................. Direct injection
Injection Pump Type ................. Rotary
Lubrication ................. Full pressure
Air Cleaner ................. Dual paper elements
Fuel Tank Capacity, gal (L) ................. 91.0 (345.0)
Oil Capacity, qts (L) ................. 17.5 (16.4)
Coolant Capacity, qts (L) ................. 27.5 (26.0)
Electrical System Rating, Volts ................. 12
Charging System ................. Alternator
Alternator Rating, Amps ................. 140

Power Take-Off

PTO Operational Type ................. Independent
PTO Horsepower, hp (kW) ................. 145.0 (108.0)
PTO Clutch ................. Hydraulic wet discs
PTO Speed, rpm ................. 540/1000
Rear PTO / Engine Speed, rpm ................. 540/2072
Rear PTO / Engine Speed, rpm ................. 1000/2086

John Deere 7800 Transmission

Transmission Type ................. PowrQuad
Gearbox Type ................. 16F/12R, partial powershift
Number of Forward Gears ................. 16
Number of Reverse Gears ................. 12
Clutch Type ................. Wet disc
Oil Capacity, qts (L) ................. 91.9 (86.7)
Maximum Forward Speed, mph (kph) ................. 18.8 (30.3)
Maximum Reverse Speed, mph (kph) ................. 10.6 (17.0)

Transmission Type ................. PowerShift
Gearbox Type ................. 19F/7R, full powershift
Number of Forward Gears ................. 19
Number of Reverse Gears ................. 7
Clutch Type ................. Wet disc
Maximum Forward Speed, mph (kph) ................. 24.2 (39.0)
Maximum Reverse Speed, mph (kph) ................. 10.2 (16.3)

JD 7800 Wheels and Tires

Drive Wheels ................. 2WD/4WD
Steering Configuration ................. Front Steer
Steering System ................. Hydrostatic power
Brakes Type ................. Differential hydraulic wet disc
Front Tire Size (2WD) ................. 16.9R28
Rear Tire Size (2WD) ................. 20.8R38
Front Tire Size (4WD) ................. 14.9R30
Rear Tire Size (4WD) ................. 18.4R42
Front Tread, in (mm) ................. 60-88 (1520-2230)
Rear Tread, in (mm) ................. 60-108 (1520-2730)

John Deere 7800 Hydraulics and Hitch

Hydraulic System Type ................. Closed center
Hydraulic Pump Type ................. Variable displacement axial pump
Implement Pump Flow, gpm (Lpm) ................. 25.4 (96.1)
Hydraulic Pressure, bar (psi) ................. 200 (2900)
Hydraulic Fluid Capacity, gal (L) ................. 22.9 (86.7)
Number of Standard Remote Valves ................. 2/3
3-Point Hitch Category ................. 3N/2
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) ................. 17560 (7980)

JD 7800 Dimensions and Weight

Wheelbase (2WD), in (mm) ................. 114.4 (2900)
Wheelbase (4WD), in (mm) ................. 110.2 (2790)
Length, in (mm) ................. 187 (4750)
Height, in (mm) ................. 119 (3010)
Ground Clearance, in (mm) ................. 22 (560)
Turning Radius, in (mm) ................. 202 (5130)
Weight (2WD), lb (kg) ................. 13910 (6310)
Weight (4WD), lb (kg) ................. 15560 (7060)

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JOHN DEERE TRACTORS SPECIFICATIONS

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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

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JOHN DEERE FRONT END LOADERS

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JOHN DEERE TRACTORS MAINTENANCE

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

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