John Deere 8630

The John Deere 8630 is a tractor produced by John Deere. It is equipped with a 619 ci 10.1 L engine. The rated power output is 275 hp 205.1 kW. Transmission: John Deere Quad-Range. Operating weight: 24150 to 24500 pounds.

Overview

	1975 - 1978 Generation II SeriesFour-wheel Drive (4WD) tractor
1975 - 1978
Generation II Series
Four-wheel Drive (4WD) tractor

Production
Manufacturer	John Deere
Four-wheel Drive (4WD) tractor
Built in Waterloo, Iowa, USA
Original price was $53,000 in 1978

John Deere 8630 Engine
John Deere 10.1L 6-cyl diesel
Engine details ...

John Deere 8630 Transmission
16-speed partial power shift
Transmission details ...

John Deere 8630 Power
Engine	275 hp 205.1 kW
PTO (claimed)	225 hp 167.8 kW
Drawbar (tested)	198.12 hp 147.7 kW
PTO (tested)	225.59 hp 168.2 kW
Performance test details ...

Mechanical
Four-wheel drive
Steering	hydraulic power
Hydraulic wet disc brakes
Sound-Gard cab standard. Optional air-conditioning.

Capacity
Fuel	156 gal 590.5 L
Hydraulic system	26 gal 98.4 L

Hydraulics
Type	closed center constant pressure
Capacity	26 gal 98.4 L
Valves	2
Pump flow	33 gpm 124.9 lpm

Tractor hitch
Rear Type	III

Power Take-off (PTO)
Rear PTO	independent
Rear PTO Type	1000
Engine RPM	2100

Dimensions & Tires
Wheelbase	125 inches 317 cm
Weight	24150 to 24500 pounds
Front tire	18.4-34
Rear tire	18.4-34
Full dimensions and tires ...

Electrical
Ground	negative
Charging system	alternator
Batteries	2
Battery CCA	975
Battery volts	6

Engine

Engine Detail — 619 ci / 10.1 L Diesel

Manufacturer	John Deere
Configuration	turbocharged diesel, 6-cylinder, liquid-cooled
Displacement	619 ci 10.1 L
Bore/Stroke	5.12x5.00 inches 130 x 127 mm
Power	275 hp 205.1 kW
Air cleaner	dry
Compression	15.4:1
Rated RPM	2100
Idle RPM	800-2300
Operating RPM	1500-2100
Starter volts	12
Coolant capacity	44 qts 41.6 L

Transmission

Transmission — John Deere Quad-Range

Transmission	John Deere Quad-Range
Type	partial power shift
Gears	16 forward and 4 reverse
Clutch	hydraulic wet disc
With 18.4x34 tires.

Dimensions

John Deere 8630 Tires
Ag front	18.4-34
Ag rear	18.4-34

Dimensions
Wheelbase	125 inches 317 cm
Length	223.5 inches 567 cm
Width	95.8 inches*Standard axle 243 cm
	118.4 inches*Long axle 300 cm
Height (exhaust)	134.5 inches 341 cm
Ground clearance	19.4 inches 49 cm
Front axle	3.622 by 96 inches 91 by 2438 mm
Front axle	3.622 by 118 inches 91 by 2997 mm
Rear axle	3.622 by 96 inches 91 by 2438 mm
Rear axle	3.622 by 118 inches 91 by 2997 mm

John Deere 8630 Weight
Shipping	24150 lbs 10954 kg
Operating	24500 lbs 11113 kg
Ballasted	26480 lbs 12011 kg

Tests

Nebraska Tractor Test 1180
Diesel Quad-Range 4WD June 3 - 11, 1975 Link: Nebraska Tractor Test 1180 file
PTO performance
Power at rated engine speed	225.59 hp 168.2 kW
Fuel use	15.3 gal/hour 57.9 l/hour
Drawbar performance
Max power	198.12 hp 147.7 kW
Fuel use	13.7 gal/hour 51.9 l/hour
Max pull	26,443 lbs 11994 kg