John Deere 8630

John Deere 8630The John Deere 8630 is a 4WD four-wheel drive tractor from the Generation II series. This tractor was manufactured by John Deere in Waterloo, Iowa, USA from 1975 to 1978. The John Deere 8630 is equipped with a 10.1 L (619.0 cu·in) six-cylinder diesel engine and a partial power shift transmission with 16 forward and 4 reverse gears and hydraulic wet disc clutch.

The JD 8630 four-wheel drive tractor used the John Deere engine. It is a 10.1 L, 10,144 cm2, (619.0 cu·in) six-cylinder turbocharged diesel engine with 130.0 mm (5.12 in) of the cylinder bore and 127.0 mm (5 in) of the piston stroke. The compression ratio rating is 15.4:1. This engine produced 278.9 PS (205.1 kW; 275.0 HP) at 2,100 rpm of output power.

The John Deere 8630 is equipped with hydraulic power steering, hydraulic wet disc brakes, Sound-Gard cab (standard), and 590.5 liters (156 US gal.; 129.9 Imp. gal) fuel tank.

John Deere 8630 Specifications

General Specifications
ModelJohn Deere 8630
Length5,670 mm (223.2 in)
Width2,430 mm (95.7 in)
Height (exhaust)3,410 mm (134.3 in)
Wheel base3,170 mm (124.8 in)
Ground clearance490 mm (19.3 in)
Weight11,110 kg (24,493 lbs)
Fuel tank capacity590.5 liters (156 US gal.; 129.9 Imp. gal)
BatteryTwo 6V, CCA 975A
Cabin typeSound-Gard cab (standard)
Engine modelJohn Deere
Engine typeFour-stroke, liquid-cooled, inline
Fuel typeDiesel
Displacement10.1 L, 10,144 cm2, (619.0 cu·in)
Bore and stroke130.0 mm X 127.0 mm (5.12 in X 5 in)
Compression ratio15.4:1
Horsepower278.9 PS (205.1 kW; 275.0 HP) at 2,100 rpm
Coolant capacity:41.6 L (44 US. qt, 36.6 Imp. qt.)
Transmission and chassis
Chassis4×4 articulated 4WD
Steering typeHydraulic power
BrakesHydraulic wet disc
Transmission modelJohn Deere Quad-Range
Transmission typePartial power shift with hydraulic wet disc clutch
Gears16 forward and 4 reverse
Speed Forward: 32.7 kmh (20.3 mph) Reverse: 17.9 (11.1 mph)
Front tires Ag: 18.4-34
Rear tires Ag: 18.4-34
Three-Point Hitch
Control type
Lift capacity (at ends)
PTO (Power take-off shaft)
Rear PTO typeIndependent
Rear PTO speed1,000 rpm
Hydraulic system
Hydraulic typeClosed center constant pressure
Hydraulic capacity98.4 L (26 US. gal, 21.6 Imp. gal.)
Pump flow33.0 gpm (124.9 lpm)
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