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Tractor · 1975Unverified

John Deere 8630

Name: John Deere 8630
Brand: John Deere

John Deere 8630 — Generation II Series · 226 hp. Reference specifications; pending source verification.

The John Deere 8630 is a tractor with a rated power output of approximately 226 hp, placing it at the more powerful end of its class. Manufactured between 1975 and 1978, it features a 6-cylinder turbocharged diesel liquid-cooled engine and four-wheel drive with a powershift transmission. The operating weight of this tractor is listed as 24,150 to 24,500 pounds. It is suited to operations covering an area of 600–1,500 acres.

Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.

Rated power

226 hp

Max power

147.7 kW

Weight

24150 to 24500 pounds

Catalogue coverage

Variants represented

Richest spec table

80 rows

Recorded power

226 hp

Transmissions

16-speed partial power shift

Production years

1975-1978

Verified variants

1 linked source document displayed

Hover a source tag to verify

Overview

ManufacturerJohn DeereReference

Four-wheel Drive (4WD) tractorReference

Built in Waterloo, Iowa, USAReference

Original price was $53,000 in 1978Reference

Four-wheel driveReference

Steeringhydraulic powerReference

Hydraulic wet disc brakesReference

Sound-Gard cab standard. Optional air-conditioning.Reference

Engine

John Deere 10.1L 6-cyl dieselReference

Engine205.1 kWReference

Drawbar (tested)147.7 kWReference

John DeereReference

turbocharged dieselReference

6-cylinderReference

liquid-cooledReference

Displacement10.1 LReference

Bore/Stroke130 x 127 mmReference

Power205.1 kWReference

Air cleanerdryReference

Compression15.4:1Reference

Rated RPM2100Reference

Idle RPM800-2300Reference

Operating RPM1500-2100Reference

Starter volts12Reference

Coolant capacity41.6 LReference

Power at rated engine speed168.2 kWReference

Max power147.7 kWReference

Transmission

16-speed partial power shiftReference

TransmissionJohn Deere Quad-RangeReference

Typepartial power shiftReference

Gears16 forward and 4 reverseReference

Clutchhydraulic wet discReference

PTO & Hydraulics

PTO (claimed)167.8 kWReference

PTO (tested)168.2 kWReference

Hydraulic system98.4 LReference

Typeclosed center constant pressureReference

Capacity98.4 LReference

Valves2Reference

Pump flow124.9 lpmReference

Rear TypeIIIReference

Rear PTOindependentReference

Rear PTO Type1000Reference

Engine RPM2100Reference

Capacities

Fuel590.5 LReference

Dimensions

Wheelbase317 cmReference

Weight24150 to 24500 poundsReference

Front tire18.4-34Reference

Rear tire18.4-34Reference

Ag front18.4-34Reference

Ag rear18.4-34Reference

Length567 cmReference

Width243 cmReference

Width300 cmReference

Height (exhaust)341 cmReference

Ground clearance49 cmReference

Front axle91 by 2438 mmReference

Front axle91 by 2997 mmReference

Rear axle91 by 2438 mmReference

Rear axle91 by 2997 mmReference

Shipping10954 kgReference

Operating11113 kgReference

Ballasted12011 kgReference

8630 Serial Numbers

Location:Back of transmission caseReference

19751000Reference

19762382Reference

19775222Reference

19787626Reference

FAQ: How to read a serial number table.Reference

Electrical

GroundnegativeReference

Charging systemalternatorReference

Batteries2Reference

Battery CCA975Reference

Battery volts6Reference

Test results

Diesel Quad-Range 4WDJune 3 - 11, 1975Link: Nebraska Tractor Test 1180 fileReference

PTO performanceReference

Fuel use57.9 l/hourReference

Drawbar performanceReference

Fuel use51.9 l/hourReference

Max pull11994 kgReference

Speeds

With 18.4x34 tires.Reference

Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.

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