John Deere 4620

John Deere 4620The John Deere 4620 is a 2WD or 4WD row-crop tractor manufactured by John Deere in Waterloo, Iowa, USA from 1971 to 1972. The John Deere 4620 is equipped with a 6.6 L (404.0 cu·in) six-cylinder diesel engine and one of two transmissions: a partially synchronized transmission with dry disc clutch and 8 forward and 2 reverse gears or a full powershift transmission with hydraulic wet disc clutch and 8 forward and 4 reverse gears.

The John Deere 4620 row-crop tractor used the John Deere engine. It is a 6.6 L, 6,620 cm2, (404.0 cu·in) six-cylinder turbocharged intercooled diesel engine with 108.0 mm (4.25 in) of the cylinder bore and 121.0 mm (4.76 in) of the piston stroke. The compression ratio rating is 16.4:1. This engine produced 137 PS (100.7 kW; 135.0 HP) at 2,200 rpm of output power.

The JD 4620 is equipped with hydrostatic power steering, hydraulic wet disc brakes, open operator station (two-post Roll-Gard ROPS and canopy or cab was available as an option), and 189.3 liters (50.0 US gal.; 41.6 Imp. gal) fuel tank.

John Deere 4620 Specifications

General Specifications
ModelJohn Deere 4620
Length4,330 mm (170.5 in)
Width Standard: 2,430 mm (95.7 in)
Long axle: 2,740 mm (108.0 in)
Extra long axle: 2,990 mm (118.0 in)
Height2,690 mm (105.9 in)
Wheel base2,700 mm (106.3 in)
Weight6,770 kg (14,925 lbs)
Fuel tank capacity189.3 liters (50 US gal.; 41.6 Imp. gal)
BatteryTwo 6V
Cabin typeOpen operator station, two-post Roll-Gard ROPS and canopy or cab.
Engine
Engine modelJohn Deere
Engine typeFour-stroke, liquid-cooled, inline
Cylinders6
Fuel typeDiesel
Displacement6.6 L, 6,620 cm2, (404.0 cu·in)
Bore and stroke108.0 mm X 121.0 mm (4.25 in X 4.76 in)
Compression ratio16.4:1
Horsepower137 PS (100.7 kW; 135.0 HP) at 2,200 rpm
StarterElectric
Oil capacity:15.1 L (16 US. qt, 13.3 Imp. qt.)
Coolant capacity:26.5 L (28 US. qt, 23.3 Imp. qt.)
Transmission and chassis
Chassis4×2 2WD or 4×4 MFWD 4WD
Steering typeHydrostatic power
BrakesHydraulic wet disc
Differential lockHydraulic
Transmission modelSyncro-Range
Transmission typePartially synchronized with dry disc clutch
Gears8 forward and 2 reverse
Speed Forward: 29.4 kmh (18.3 mph) Reverse: 8.9 (5.5 mph)
Transmission oil capacity60.6 L (16 US. gal, 13.3 Imp. gal.)
Transmission modelPower Shift
Transmission typeFull power shift with hydraulic wet disc clutch
Gears8 forward and 4 reverse
Speed Forward: 29.7 kmh (18.5 mph) Reverse: 8.5 (5.3 mph)
Transmission oil capacity68.1 L (18 US. gal, 15 Imp. gal.)
Tires
Front tiresAg: 11.00-16
Rear tiresAg: 20.8-38
Three-Point Hitch
CaterogyIII/II
Control type
Lift capacity (at ends)
PTO (Power take-off shaft)
Rear PTO typeIndependent
Rear PTO speed1,000 rpm
Hydraulic system
Hydraulic typeClosed center
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