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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 listed engine power is Diesel (listed): 275 hp / 205.1 kW. Transmission: John Deere Quad-Range. Operating weight: 24150 to 24500 pounds.

Engine Power
Diesel (listed): 275 hp / 205.1 kW
Fuel & Capacities
156 gal 590.5 L
Transmission
John Deere Quad-Range
Operating Weight
24150 to 24500 pounds

Overview

John Deere 8630 tractor photo
1975 - 1978 Generation II SeriesFour-wheel Drive (4WD) tractor 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.
8630 Quad-Range partial power shift speeds

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

Recommended Implements & Sizing Guide

Engineering recommendations for John Deere 8630 based on its 275 HP power envelope and ASAE agricultural standards.

Implement & OperationRecommended SizeWorkload RatingEngineering Notes
Moldboard PlowPrimary Tillage
8+ Bottom On-Land Hitch8+ 铧重型机外牵引犁Commercial / Field ScaleHigh horsepower articulated/4WD field plowing.
Rotary Cutter / MowerMowing & Clearing
15 to 20 ft Batwing4.6 - 6.1 m 宽幅折叠翼Commercial / Field ScaleLarge commercial field and roadside mowing operations.
Rotary TillerSeedbed Prep
90 to 120 in Heavy Duty230 - 300 cm 重型旋耕机Commercial / Field ScaleDeep intensive seedbed preparation for commercial row crops.
Disc HarrowSecondary Tillage
24 to 36 ft Heavy Duty Field Disc7.3 - 11.0 m 超宽重型整地耙Commercial / Field ScaleBroad-acre grain tillage for high-drawbar tractors.
Hay BalerHay & Forage
Large Square Baler (3x4 or 4x4)大方捆商用打捆机 (1.2x1.2 m)Commercial / Field ScaleHigh-capacity commercial forage harvesting (1000 RPM PTO).
Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.

Fluids, Capacities & Working Autonomy

Standard fluid requirements, service intervals, and continuous runtime estimates for John Deere 8630.

Estimated Continuous Field Runtime: 10.9 hrs

Approximately 10.9 hours of continuous field operation at ~75% rated power on a full tank (156 gal / 590.5 L).

Estimated 75% Load Fuel Burn~14.3 gal/hr (54.1 L/hr)

Engine Crankcase Oil

SAE 15W-40 (Heavy Duty Diesel)
Standard Spec: API CK-4 / CJ-4 Heavy Duty
Service Interval: 150 – 250 Hours

Transmission & Hydraulic System

UTTO (Universal Tractor Transmission Oil)
Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)
Service Interval: 600 – 1000 Hours

Engine Cooling System

50/50 Ethylene Glycol Pre-mix
Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze
Service Interval: 2 Years / 1500 Hours

John Deere 8630 Specification Unit Converter

Convert power, fluid capacities, and operating weights between metric and imperial standards for John Deere 8630.

Converted Equivalents:

Horsepower (HP)275 hp
Kilowatts (kW)205.1 kW
Metric Horsepower (PS / CV)278.8 PS

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