Specifications, Service and Repair of Farm and Lawn Tractors

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John Deere 4840 Specifications

JD 4840 Engine Technical Data

Engine Model ............. John Deere 6466
Engine Type ............. 4 Stroke, six-cylinder, direct injection turbocharged intercooled diesel
Number of Cylinders ............. 6
Displacement, cu in (L) ............. 466 (7.64)
Engine Bore, in (mm) ............. 4.56 (116.0)
Engine Stroke, in (mm) ............. 4.75 (121.0)
Aspiration ............. Turbocharged
Rated Engine Power, hp (kW) ............. 200.0 (148.1)
Rated Engine Speed, rpm ............. 2200
Idle Speed, rpm ............. 800-2400
Compression ............. 15.5:1
Firing Order ............. 1-5-3-6-2-4
Fuel System ............. Direct injection
Air Cleaner ............. Dual dry element
Fuel Tank Capacity, gal (L) ............. 103.0 (390.0)
Oil Capacity, qts (L) ............. 21.0 (19.9)
Coolant Capacity, qts (L) ............. 40.0 (37.5)
Electrical System Rating, Volts ............. 12
Charging System ............. Alternator
Alternator Rating, Amps ............. 90

Power Take-Off

PTO Operational Type ............. Independent
PTO Horsepower, hp (kW) ............. 180.0 (134.0)
PTO Clutch ............. Hydraulic disc
PTO Speed, rpm ............. 1000
PTO/Engine Speed, rpm ............. 1000/2200

John Deere 4840 Transmission

Transmission Type ............. Power Shift
Gearbox Type ............. 8F/4R, Full powershift
Number of Forward Gears ............. 8
Number of Reverse Gears ............. 4
Clutch Type ............. Wet disc
Oil Capacity, qts (L) ............. 80.0 (75.7)
Maximum Forward Speed, mph (kph) ............. 18.6 (29.9)
Maximum Reverse Speed, mph (kph) ............. 6.4 (10.3)

Wheels and Tires

Drive Wheels ............. 2WD 4x2
Steering Configuration ............. Front steer
Steering System ............. Power Steering
Brakes Type ............. Differential hydraulic wet disc
Front Tire Size (Std) ............. 11.0-16
Rear Tire Size (Std) ............. 18.4-38
Front Tire Size (Opt) ............. 16.5L-16.1
Rear Tire Size (Opt) ............. 18.4-42
Front Tread Width, in (mm) ............. 58-100 (1470-2540)
Rear Tread Width, in (mm) ............. 60-131.5 (1520-3340)

JD 4840 Hydraulics and Hitch

Hydraulic System Type ............. Closed center
Implement Pump Flow, gpm (Lpm) ............. 23.0 (87.1)
Hydraulic Pressure, Bar (psi) ............. 157 (2275)
Hydraulic Capacity, gal (L) ............. 16.5 (62.5)
Number of Standard Remote Valves ............. 2/3
3-Point Hitch Category ............. 3/3N
Standard Lift Capacity at lift pin, lb (kg) ............. 8295 (3760)
Upper Link Pin Diameter, in (mm) ............. 31.75 (1.25)
Upper Link Hole Diameter, in (mm) ............. 32.00 (1.26)
Lower Link Pin Diameter, in (mm) ............. 36.58 (1.44)
Lower Link Hole Diameter, in (mm) ............. 37.34 (1.47)
Lower Hitch Point Span (3/3N), in (mm) ............. 964.95 (37.99) / 825 (32.5)
Width of Ball, in (mm) ............. 45 (1.77)
Pin Centerline (Lower to Upper), in (mm) ............. 685 (27.0)

John Deere 4840 Dimensions and Weight

Wheelbase, in (mm) ............. 118.5 (3000)
Length, in (mm) ............. 177 (4490)
Height (Cab), in (mm) ............. 117 (2970)
Overall Width, in (mm) ............. 96 (2430)
Ground Clearance, in (mm) ............. 14.9 (370)
Front Axle Clearance, in (mm) ............. 26 (660)
Turning Radius, in (mm) ............. 162 (4100)
Shipping Weight, lb (kg) ............. 14900 (6760)
Operating Weight, lb (kg) ............. 18000 (8165)
Ballasted Weight, lb (kg) ............. 20370 (9240)

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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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