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
Model John Deere 8630
Length 5,670 mm (223.2 in)
Width 2,430 mm (95.7 in)
Height (exhaust) 3,410 mm (134.3 in)
Wheel base 3,170 mm (124.8 in)
Ground clearance 490 mm (19.3 in)
Weight 11,110 kg (24,493 lbs)
Fuel tank capacity 590.5 liters (156 US gal.; 129.9 Imp. gal)
Battery Two 6V, CCA 975A
Cabin type Sound-Gard cab (standard)
Engine model John Deere
Engine type Four-stroke, liquid-cooled, inline
Cylinders 6
Fuel type Diesel
Displacement 10.1 L, 10,144 cm2, (619.0 cu·in)
Bore and stroke 130.0 mm X 127.0 mm (5.12 in X 5 in)
Compression ratio 15.4:1
Horsepower 278.9 PS (205.1 kW; 275.0 HP) at 2,100 rpm
Starter Electric
Coolant capacity: 41.6 L (44 US. qt, 36.6 Imp. qt.)
Transmission and chassis
Chassis 4×4 articulated 4WD
Steering type Hydraulic power
Brakes Hydraulic wet disc
Transmission model John Deere Quad-Range
Transmission type Partial power shift with hydraulic wet disc clutch
Gears 16 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
Category III
Control type
Lift capacity (at ends)
PTO (Power take-off shaft)
Rear PTO type Independent
Rear PTO speed 1,000 rpm
Hydraulic system
Hydraulic type Closed center constant pressure
Hydraulic capacity 98.4 L (26 US. gal, 21.6 Imp. gal.)
Valves 2
Pump flow 33.0 gpm (124.9 lpm)
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