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John Deere 4620 Specifications
The John Deere 4620 is a 2-wheel drive or 4-wheel drive row-crop tractor. This model was manufactured by factory in Waterloo (Iowa, USA) from 1971 to 1972. The components of John Deere 4620 powerline system: a 404 cubic inches (6.6 L) John Deere 6404T 4-cycle 6-cylinder turbocharged intercooled diesel engine with a rated power of 150 hp (111.2 kW), and partially synchronized transmission with 8 forward and 2 reverse gears or full powershift transmission with 8 forward and 4 reverse gears.
The maximum travel speed (forward/reverse): 18.5 mph (29.7 km/h) and 5.6 mph (8.9 km/h). The closed center hydraulic system includes a piston pump with rated fluid flow of 22 gal/min (83.3 l/min). The hydraulic pressure is 155 bar (2250 psi). The John Deere 4620 is equipped with a hydrostatic power steering system, hydraulic wet disc brakes, 11.0x16 (2WD) or 14.9x24 (4WD) front tires, and 20.8x38 (2WD) or 24.5x32 (4WD) rear tires. The wheelbase is 106.5" (2700 mm).
| Engine Specs |
Engine Model ................... John Deere 6404T
Engine Type ................... 4 Cycle six-cylinder turbocharged intercooled diesel
Number of Cylinders ................... 6
Displacement, cu.in (L) ................... 404 (6.61)
Cylinder Bore, in (mm) ................... 4.25 (108.0)
Piston Stroke, in (mm) ................... 4.75 (121.0)
Aspiration Type ................... Turbocharged
Rated Engine Power, hp (kW) ................... 150.0 (111.2)
Rated Engine Speed, rpm ................... 2200
Idle Speed, rpm ................... 800-2200
Compression Ratio ................... 16.4:1
Firing Order ................... 1-5-3-6-2-4
Fuel System ................... Direct injection
Lubrication System ................... Pressure
Cooling System ................... Liquid-cooled
Air Cleaner Type ................... Dual dry element
Intake Valve Clearance, in (mm) ................... 0.018 (0.46)
Exhaust Valve Clearance, in (mm) ................... 0.028 (0.71)
Fuel Tank Capacity, gal (L) ................... 50.0 (189.3)
Oil Capacity, qts (L) ................... 16.0 (15.1)
Coolant Capacity, qts (L) ................... 28.0 (26.5)
Electrical System Rating, Volts ................... 12
Charging System ................... Alternator
Battery Rating, Volts ................... 2x6V
| Power Take-Off |
PTO Operational Type ................... Independent
PTO Power, hp (kW) ................... 135.0 (100.7)
PTO Speed, rpm ................... 1000
PTO/Engine Speed, rpm ................... 1000/1900
| Standard Transmission |
Transmission Model ................... Syncro Range
Transmission Type ................... Partially synchronized
Gearbox Type ................... 8F/2R
Number of Forward Gears ................... 8
Number of Reverse Gears ................... 2
Clutch Type ................... Dry disc
Clutch Disc Diameter, in (mm) ................... 14.8 (373)
Oil Capacity, qts (L) ................... 64.0 (60.6)
Maximum Forward Speed, mph (kph) ................... 18.3 (29.4)
Maximum Reverse Speed, mph (kph) ................... 5.6 (8.9)
| Optional Transmission |
Transmission Model ................... Power Shift
Transmission Type ................... Full powershift
Gearbox Type ................... 8F/4R
Number of Forward Gears ................... 8
Number of Reverse Gears ................... 4
Clutch Type ................... Hydraulic wet discs
Oil Capacity (2WD), qts (L) ................... 72.0 (68.1)
Maximum Forward Speed, mph (kph) ................... 18.5 (29.7)
Maximum Reverse Speed, mph (kph) ................... 5.3 (8.5)
| Wheels and Tires |
Wheel Drive System ................... 2WD/4WD
Steering Configuration ................... Front steer
Steering System ................... Hydrostatic power
Brakes Type ................... Hydraulic wet disc
Front Tire Size (Std) ................... 11.00x16
Rear Tire Size (Std) ................... 20.8x38
Front Tire Size (Opt) ................... 14.9x24
Rear Tire Size (Opt) ................... 24.5x32
Rear Tire Size (Duals) ................... 12.4x42
Front Tread, in (mm) ................... 56-88 (1420-2230)
Rear Tread, in (mm) ................... 60-130 (1520-3300)
| Hydraulic System |
Hydraulic System Type ................... Closed center
Implement Pump Flow, gpm (Lpm) ................... 22.0 (83.3)
Hydraulic Pressure, Bar (psi) ................... 155 (2250)
Hydraulic Capacity (Syncro-Range), gal (L) ................... 16.0 (60.5)
Hydraulic Capacity (Power Shift), gal (L) ................... 18.0 (68.1)
Number of Standard Remote Valves ................... 1/2
3-Point Hitch Category ................... 3
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)
| Dimensions and Weight |
Wheelbase, in (mm) ................... 106.5 (2700)
Overall Length, in (mm) ................... 170.7 (4330)
Height (Cab), in (mm) ................... 106 (2690)
Height (Steering Wheel), in (mm) ................... 87 (2200)
Overall Width, in (mm) ................... 95.8 (2430)
Ground Clearance, in (mm) ................... 17.8 (450)
Front Axle Clearance, in (mm) ................... 23.8 (600)
Shipping Weight, lbs (kg) ................... 12980 (5890)
Operating Weight, lbs (kg) ................... 14930 (6770)
Ballasted Weight, lbs (kg) ................... 18640 (8455)
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