John Deere 4630

Last Updated: July 2024

Overview

The John Deere 4630 is a versatile row-crop tractor with a 6-cylinder, turbocharged and aftercooled diesel engine. The engine has a displacement of 404 cubic inches, a bore of 4.25 inches, and a stroke of 4.75 inches. It operates at a rated speed of 2200 RPM and produces a maximum power output of 150.66 horsepower. The compression ratio is 16.0 to 1, and the engine is equipped with an electrical cranking system (two 6-volt batteries) and pressure lubrication. The tractor is available with different chassis configurations, including 2WD and 4WD options. The transmission offers a range of gear options, including 16 forward gears and 4 reverse gears with speeds ranging from 2.0 to 5.9 mph. Independent test results provide detailed performance data, such as fuel consumption under varying loads, drawbar performance with and without ballast, and sound level measurements.
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Key Specifications

Category: Row Crop

Power Output: 150.66

Transmission: Partially synchronized/partial power shift/full power shift

Drive Type: 2WD/4WD

Operating Weight: 16250

Fuel Type: Diesel

John Deere 4630 vs. Similar Tractors

Power Output
Average
Greater than 62% of similar tractors.
Hitch Capacity
Average
Greater than 39% of similar tractors.
Operating Weight
Average
Greater than 63% of similar tractors.

Technical Specifications

Engine

Manufacturer
John Deere
Model
John Deere
Cooling Type
Liquid-cooled
Cylinder Orientation
Inline
Valve Configuration
-
Fuel Type
Diesel
Induction Type
Aftercooled turbocharged
Cylinders
6
Displacement (ci)
404
Bore (in)
4.25
Stroke (in)
4.75
Rated RPM
2200
Power Output (hp)
150.66

Transmission

Type
Partially synchronized/partial power shift/full power shift
Forward Gears
16-Aug
Reverse Gears
4 (2.0, 2.9, 4.5, 5.9 mph)
Total Gears
-

Dimensions

Length (in)
171.3
Width (in)
95.7
Height (in)
116.9
Operating Weight (lb)
16250

Power Take-Off (PTO)

PTO Type
Independent
PTO Speed 1 (rpm)
1000
PTO Speed 2 (rpm)
-
PTO Speed 3 (rpm)
-

Miscellaneous

Chassis
4×2 2WD or 4x4 HFWD 4WD
Drive Type
2WD/4WD
Steering Type
Full-power hydrostatic power
Coolant Capacity (qts)
36
Front Tire Diameter (in)
-
Front Tire Width (in)
-
Rear Tire Diameter (in)
-
Rear Tire Width (in)
-
Front/Rear Rim Diameter (in)
-
Tire Type
Ag
Manufacture - End Year
1977
Hitch Type
III/IIIN
Hitch Category
Category 3
Hitch Position
Rear
Hitch Capacity (lb)
5248 lbs
Operator Station Type
Sound-Gard cab with a/c
Starter Type
Electric
Brake Type
Full-power wet disc differential
Hydraulic System Type
Closed center

Test Results

Nebraska Tractor Test Laboratory - Test Date: October 13 to October 24, 1972

Maximum Power and Fuel Consumption

  • Maximum Power (Rated Engine Speed - PTO Speed: 995 rpm): 150.66 HP at 2200 rpm
  • Fuel Consumption at Maximum Power: 9.608 Gal/hr with a fuel efficiency of 0.443 lb/hp.hr

Varying Power and Fuel Consumption - Two Hours

  • 34.15 HP at 2349 rpm: 4.345 Gal/hr, 0.884 lb/hp.hr, 7.86 Hp.hr/gal
  • 100.43 HP at 2301 rpm: 7.411 Gal/hr, 0.513 lb/hp.hr, 13.55 Hp.hr/gal
  • 67.69 HP at 2328 rpm: 5.844 Gal/hr, 0.600 lb/hp.hr, 11.58 Hp.hr/gal

Drawbar Performance

  • Maximum Available Power - Two Hours - 4th Gear: 127.9 HP with a drawbar pull of 10,751 lbs and a speed of 4.46 mph
  • 75% of Pull at Maximum Power - Ten Hours - 4th Gear: 102.88 HP with a drawbar pull of 8047 lbs and a speed of 4.79 mph
  • 50% of Pull at Maximum Power - Two Hours - 4th Gear: 70.53 HP with a drawbar pull of 5318 lbs and a speed of 4.97 mph

Maximum Power Without Ballast

  • Maximum Power Without Ballast: 132.30 HP at 2275 rpm with fuel consumption of 8.945 Gal/hr and fuel efficiency of 0.470 lb/hp.hr, 14.79 Hp.hr/gal

Hydraulic Performance

  • Pump Delivery Rate: NA (No specific data provided)
  • Hydraulic Power: NA (No specific data provided)



Nebraska Tractor Test Lab. (1972). Test 1113: John Deere 4630 Power Shift Diesel. Lincoln, NE: University of Nebraska. Retrieved from https://digitalcommons.unl.edu/tractormuseumlit/1436

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